Add file option php_class_prefix (#2849)

This option will be prepended to generated classes of all messages in
the containing file.

Makefile.am

@@ -584,6 +584,21 @@ objectivec_EXTRA_DIST=                                                       \
   Protobuf.podspec
 
 php_EXTRA_DIST=                                                       \
+  php/ext/google/protobuf/utf8.h                                      \
+  php/ext/google/protobuf/message.c                                   \
+  php/ext/google/protobuf/utf8.c                                      \
+  php/ext/google/protobuf/package.xml                                 \
+  php/ext/google/protobuf/upb.h                                       \
+  php/ext/google/protobuf/array.c                                     \
+  php/ext/google/protobuf/encode_decode.c                             \
+  php/ext/google/protobuf/protobuf.h                                  \
+  php/ext/google/protobuf/type_check.c                                \
+  php/ext/google/protobuf/def.c                                       \
+  php/ext/google/protobuf/storage.c                                   \
+  php/ext/google/protobuf/map.c                                       \
+  php/ext/google/protobuf/config.m4                                   \
+  php/ext/google/protobuf/upb.c                                       \
+  php/ext/google/protobuf/protobuf.c                                  \
   php/src/phpdoc.dist.xml                                             \
   php/src/Google/Protobuf/Internal/DescriptorPool.php                 \
   php/src/Google/Protobuf/Internal/GeneratedCodeInfo.php              \
@@ -632,39 +647,26 @@ php_EXTRA_DIST=                                                       \
   php/src/Google/Protobuf/Internal/FieldOptions_CType.php             \
   php/src/Google/Protobuf/descriptor.php                              \
   php/src/GPBMetadata/Google/Protobuf/Internal/Descriptor.php         \
+  php/tests/array_test.php                                            \
   php/tests/autoload.php                                              \
   php/tests/encode_decode_test.php                                    \
-  php/tests/test.sh                                                   \
   php/tests/gdb_test.sh                                               \
   php/tests/generated_class_test.php                                  \
-  php/tests/array_test.php                                            \
+  php/tests/map_field_test.php                                        \
+  php/tests/memory_leak_test.php                                      \
   php/tests/php_implementation_test.php                               \
   php/tests/proto/test_include.proto                                  \
-  php/tests/map_field_test.php                                        \
-  php/tests/test_base.php                                             \
+  php/tests/proto/test.proto                                          \
+  php/tests/proto/test_prefix.proto                                   \
   php/tests/proto/test_no_namespace.proto                             \
+  php/tests/test.sh                                                   \
+  php/tests/test_base.php                                             \
   php/tests/test_util.php                                             \
-  php/tests/proto/test.proto                                          \
-  php/tests/memory_leak_test.php                                      \
   php/tests/well_known_test.php                                       \
   php/README.md                                                       \
-  php/ext/google/protobuf/utf8.h                                      \
-  php/ext/google/protobuf/message.c                                   \
-  php/ext/google/protobuf/utf8.c                                      \
-  php/ext/google/protobuf/package.xml                                 \
-  php/ext/google/protobuf/upb.h                                       \
-  php/ext/google/protobuf/array.c                                     \
-  php/ext/google/protobuf/encode_decode.c                             \
-  php/ext/google/protobuf/protobuf.h                                  \
-  php/ext/google/protobuf/type_check.c                                \
-  php/ext/google/protobuf/def.c                                       \
-  php/ext/google/protobuf/storage.c                                   \
-  php/ext/google/protobuf/map.c                                       \
-  php/ext/google/protobuf/config.m4                                   \
-  php/ext/google/protobuf/upb.c                                       \
-  php/ext/google/protobuf/protobuf.c                                  \
   php/phpunit.xml                                                     \
   php/composer.json                                                   \
+  php/generate_descriptor_protos.sh                                   \
   composer.json
 
 python_EXTRA_DIST=                                                           \

generate_descriptor_proto.sh

@@ -104,3 +104,8 @@ if test -x csharp/generate_protos.sh; then
   echo "Generating messages for C#."
   csharp/generate_protos.sh $@
 fi
+
+if test -x php/generate_descriptor_protos.sh; then
+  echo "Generating messages for PHP."
+  php/generate_descriptor_protos.sh $@
+fi

php/composer.json

@@ -18,7 +18,8 @@
       "Google\\Protobuf\\": "tests/generated/Google/Protobuf",
       "Google\\Protobuf\\Internal\\": "src/Google/Protobuf/Internal",
       "GPBMetadata\\": "tests/generated/GPBMetadata",
-      "GPBMetadata\\Google\\Protobuf\\Internal\\": "src/GPBMetadata/Google/Protobuf/Internal"
+      "GPBMetadata\\Google\\Protobuf\\Internal\\": "src/GPBMetadata/Google/Protobuf/Internal",
+      "": "tests/generated"
     },
     "files": [
       "src/Google/Protobuf/descriptor.php"

php/ext/google/protobuf/def.c

@@ -252,39 +252,54 @@ PHP_METHOD(DescriptorPool, getGeneratedPool) {
 
 static void convert_to_class_name_inplace(char *class_name,
                                           const char* fullname,
+                                          const char* prefix,
                                           const char* package_name) {
-  size_t i;
-  bool first_char = false;
+  size_t i = 0, j;
+  bool first_char = true;
   size_t pkg_name_len = package_name == NULL ? 0 : strlen(package_name);
+  size_t prefix_len = prefix == NULL ? 0 : strlen(prefix);
+  size_t message_name_start = package_name == NULL ? 0 : pkg_name_len + 1;
+  size_t message_len = (strlen(fullname) - message_name_start);
 
   // In php, class name cannot be Empty.
   if (strcmp("google.protobuf.Empty", fullname) == 0) {
-    fullname = "google.protobuf.GPBEmpty";
+    strcpy(class_name, "\\Google\\Protobuf\\GPBEmpty");
+    return;
   }
 
-  if (pkg_name_len == 0) {
-    strcpy(class_name, fullname);
-  } else {
-    class_name[0] = '.';
-    strcpy(&class_name[1], fullname);
-    for (i = 0; i <= pkg_name_len + 1; i++) {
-      // PHP package uses camel case.
-      if (!first_char && class_name[i] != '.') {
-        first_char = true;
-        class_name[i] += 'A' - 'a';
-      }
+  if (pkg_name_len != 0) {
+    class_name[i++] = '\\';
+    for (j = 0; j < pkg_name_len; j++) {
       // php packages are divided by '\'.
-      if (class_name[i] == '.') {
+      if (package_name[j] == '.') {
+        class_name[i++] = '\\';
+        first_char = true;
+      } else if (first_char) {
+        // PHP package uses camel case.
+        if (package_name[j] < 'A' || package_name[j] > 'Z') {
+          class_name[i++] = package_name[j] + 'A' - 'a';
+        } else {
+          class_name[i++] = package_name[j];
+        }
         first_char = false;
-        class_name[i] = '\\';
+      } else {
+        class_name[i++] = package_name[j];
       }
     }
+    class_name[i++] = '\\';
+  }
+
+  if (prefix_len > 0) {
+    strcpy(class_name + i, prefix);
+    i += prefix_len;
   }
 
   // Submessage is concatenated with its containing messages by '_'.
-  for (i = pkg_name_len; i < strlen(class_name); i++) {
-    if (class_name[i] == '.') {
-      class_name[i] = '_';
+  for (j = message_name_start; j < message_name_start + message_len; j++) {
+    if (fullname[j] == '.') {
+      class_name[i++] = '_';
+    } else {
+      class_name[i++] = fullname[j];
     }
   }
 }
@@ -339,8 +354,13 @@ PHP_METHOD(DescriptorPool, internalAddGeneratedFile) {
      * bytes allocated, one for '.', one for trailing 0, and 3 for 'GPB' if    \
      * given message is google.protobuf.Empty.*/                               \
     const char *fullname = upb_##def_type_lower##_fullname(def_type_lower);    \
-    char *klass_name = ecalloc(sizeof(char), 5 + strlen(fullname));            \
-    convert_to_class_name_inplace(klass_name, fullname,                        \
+    const char *prefix = upb_filedef_phpprefix(files[0]);                      \
+    size_t klass_name_len = strlen(fullname) + 5;                              \
+    if (prefix != NULL) {                                                      \
+      klass_name_len += strlen(prefix);                                        \
+    }                                                                          \
+    char *klass_name = ecalloc(sizeof(char), klass_name_len);                  \
+    convert_to_class_name_inplace(klass_name, fullname, prefix,                \
                                   upb_filedef_package(files[0]));              \
     zend_class_entry **pce;                                                    \
     if (zend_lookup_class(klass_name, strlen(klass_name), &pce TSRMLS_CC) ==   \

php/ext/google/protobuf/upb.h

@@ -2972,6 +2972,11 @@ class upb::FileDef {
   const char* package() const;
   bool set_package(const char* package, Status* s);
 
+  /* Sets the php class prefix which is prepended to all php generated classes
+   / from this .proto. Default is empty. */
+  const char* phpprefix() const;
+  bool set_phpprefix(const char* phpprefix, Status* s);
+
   /* Syntax for the file.  Defaults to proto2. */
   upb_syntax_t syntax() const;
   void set_syntax(upb_syntax_t syntax);
@@ -3025,6 +3030,7 @@ UPB_REFCOUNTED_CMETHODS(upb_filedef, upb_filedef_upcast)
 
 const char *upb_filedef_name(const upb_filedef *f);
 const char *upb_filedef_package(const upb_filedef *f);
+const char *upb_filedef_phpprefix(const upb_filedef *f);
 upb_syntax_t upb_filedef_syntax(const upb_filedef *f);
 size_t upb_filedef_defcount(const upb_filedef *f);
 size_t upb_filedef_depcount(const upb_filedef *f);
@@ -3034,6 +3040,8 @@ const upb_filedef *upb_filedef_dep(const upb_filedef *f, size_t i);
 bool upb_filedef_freeze(upb_filedef *f, upb_status *s);
 bool upb_filedef_setname(upb_filedef *f, const char *name, upb_status *s);
 bool upb_filedef_setpackage(upb_filedef *f, const char *package, upb_status *s);
+bool upb_filedef_setphpprefix(upb_filedef *f, const char *phpprefix,
+                              upb_status *s);
 bool upb_filedef_setsyntax(upb_filedef *f, upb_syntax_t syntax, upb_status *s);
 
 bool upb_filedef_adddef(upb_filedef *f, upb_def *def, const void *ref_donor,
@@ -3792,6 +3800,12 @@ inline const char* FileDef::package() const {
 inline bool FileDef::set_package(const char* package, Status* s) {
   return upb_filedef_setpackage(this, package, s);
 }
+inline const char* FileDef::phpprefix() const {
+  return upb_filedef_phpprefix(this);
+}
+inline bool FileDef::set_phpprefix(const char* phpprefix, Status* s) {
+  return upb_filedef_setphpprefix(this, phpprefix, s);
+}
 inline int FileDef::def_count() const {
   return upb_filedef_defcount(this);
 }
@@ -4006,6 +4020,7 @@ struct upb_filedef {
 
   const char *name;
   const char *package;
+  const char *phpprefix;
   upb_syntax_t syntax;
 
   upb_inttable defs;
@@ -7212,6 +7227,7 @@ UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileOptions_f_java_string
 UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileOptions_f_javanano_use_deprecated_package(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileOptions_is(m)); return upb_msgdef_itof(m, 38); }
 UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileOptions_f_objc_class_prefix(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileOptions_is(m)); return upb_msgdef_itof(m, 36); }
 UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileOptions_f_optimize_for(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileOptions_is(m)); return upb_msgdef_itof(m, 9); }
+UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileOptions_f_php_class_prefix(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileOptions_is(m)); return upb_msgdef_itof(m, 40); }
 UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileOptions_f_py_generic_services(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileOptions_is(m)); return upb_msgdef_itof(m, 18); }
 UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileOptions_f_uninterpreted_option(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileOptions_is(m)); return upb_msgdef_itof(m, 999); }
 UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_MessageOptions_f_deprecated(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_MessageOptions_is(m)); return upb_msgdef_itof(m, 3); }

php/generate_descriptor_protos.sh

+#!/usr/bin/env bash
+
+# Run this script to regenerate desriptor protos after the protocol compiler
+# changes.
+
+if test ! -e src/google/protobuf/stubs/common.h; then
+  cat >&2 << __EOF__
+Could not find source code.  Make sure you are running this script from the
+root of the distribution tree.
+__EOF__
+  exit 1
+fi
+
+pushd src
+./protoc --php_out=internal:../php/src google/protobuf/descriptor.proto
+popd

php/src/GPBMetadata/Google/Protobuf/Internal/Descriptor.php

@@ -144,6 +144,7 @@ class Descriptor
             ->optional('objc_class_prefix', \Google\Protobuf\Internal\GPBType::STRING, 36)
             ->optional('csharp_namespace', \Google\Protobuf\Internal\GPBType::STRING, 37)
             ->optional('swift_prefix', \Google\Protobuf\Internal\GPBType::STRING, 39)
+            ->optional('php_class_prefix', \Google\Protobuf\Internal\GPBType::STRING, 40)
             ->repeated('uninterpreted_option', \Google\Protobuf\Internal\GPBType::MESSAGE, 999, 'google.protobuf.internal.UninterpretedOption')
             ->finalizeToPool();
 

php/src/Google/Protobuf/Internal/DescriptorProto.php

@@ -117,8 +117,8 @@ class DescriptorProto extends \Google\Protobuf\Internal\Message
      */
     public function setField(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\FieldDescriptorProto::class);
-        $this->field = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\FieldDescriptorProto::class);
+        $this->field = $arr;
         $this->has_field = true;
     }
 
@@ -140,8 +140,8 @@ class DescriptorProto extends \Google\Protobuf\Internal\Message
      */
     public function setExtension(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\FieldDescriptorProto::class);
-        $this->extension = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\FieldDescriptorProto::class);
+        $this->extension = $arr;
         $this->has_extension = true;
     }
 
@@ -163,8 +163,8 @@ class DescriptorProto extends \Google\Protobuf\Internal\Message
      */
     public function setNestedType(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\DescriptorProto::class);
-        $this->nested_type = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\DescriptorProto::class);
+        $this->nested_type = $arr;
         $this->has_nested_type = true;
     }
 
@@ -186,8 +186,8 @@ class DescriptorProto extends \Google\Protobuf\Internal\Message
      */
     public function setEnumType(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\EnumDescriptorProto::class);
-        $this->enum_type = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\EnumDescriptorProto::class);
+        $this->enum_type = $arr;
         $this->has_enum_type = true;
     }
 
@@ -209,8 +209,8 @@ class DescriptorProto extends \Google\Protobuf\Internal\Message
      */
     public function setExtensionRange(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\DescriptorProto_ExtensionRange::class);
-        $this->extension_range = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\DescriptorProto_ExtensionRange::class);
+        $this->extension_range = $arr;
         $this->has_extension_range = true;
     }
 
@@ -232,8 +232,8 @@ class DescriptorProto extends \Google\Protobuf\Internal\Message
      */
     public function setOneofDecl(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\OneofDescriptorProto::class);
-        $this->oneof_decl = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\OneofDescriptorProto::class);
+        $this->oneof_decl = $arr;
         $this->has_oneof_decl = true;
     }
 
@@ -278,8 +278,8 @@ class DescriptorProto extends \Google\Protobuf\Internal\Message
      */
     public function setReservedRange(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\DescriptorProto_ReservedRange::class);
-        $this->reserved_range = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\DescriptorProto_ReservedRange::class);
+        $this->reserved_range = $arr;
         $this->has_reserved_range = true;
     }
 
@@ -311,8 +311,8 @@ class DescriptorProto extends \Google\Protobuf\Internal\Message
      */
     public function setReservedName(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::STRING);
-        $this->reserved_name = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::STRING);
+        $this->reserved_name = $arr;
         $this->has_reserved_name = true;
     }
 

php/src/Google/Protobuf/Internal/EnumDescriptorProto.php

@@ -77,8 +77,8 @@ class EnumDescriptorProto extends \Google\Protobuf\Internal\Message
      */
     public function setValue(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\EnumValueDescriptorProto::class);
-        $this->value = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\EnumValueDescriptorProto::class);
+        $this->value = $arr;
         $this->has_value = true;
     }
 

php/src/Google/Protobuf/Internal/EnumOptions.php

@@ -144,8 +144,8 @@ class EnumOptions extends \Google\Protobuf\Internal\Message
      */
     public function setUninterpretedOption(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\UninterpretedOption::class);
-        $this->uninterpreted_option = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\UninterpretedOption::class);
+        $this->uninterpreted_option = $arr;
         $this->has_uninterpreted_option = true;
     }
 

php/src/Google/Protobuf/Internal/EnumValueOptions.php

@@ -101,8 +101,8 @@ class EnumValueOptions extends \Google\Protobuf\Internal\Message
      */
     public function setUninterpretedOption(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\UninterpretedOption::class);
-        $this->uninterpreted_option = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\UninterpretedOption::class);
+        $this->uninterpreted_option = $arr;
         $this->has_uninterpreted_option = true;
     }
 

php/src/Google/Protobuf/Internal/FieldDescriptorProto_Label.php

@@ -2,11 +2,11 @@
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # source: google/protobuf/descriptor.proto
 
+namespace Google\Protobuf\Internal;
+
 /**
  * Protobuf enum <code>google.protobuf.FieldDescriptorProto.Label</code>
  */
-namespace Google\Protobuf\Internal;
-
 class FieldDescriptorProto_Label
 {
     /**

php/src/Google/Protobuf/Internal/FieldDescriptorProto_Type.php

@@ -2,11 +2,11 @@
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # source: google/protobuf/descriptor.proto
 
+namespace Google\Protobuf\Internal;
+
 /**
  * Protobuf enum <code>google.protobuf.FieldDescriptorProto.Type</code>
  */
-namespace Google\Protobuf\Internal;
-
 class FieldDescriptorProto_Type
 {
     /**
@@ -63,6 +63,9 @@ class FieldDescriptorProto_Type
     /**
      * <pre>
      * Tag-delimited aggregate.
+     * Group type is deprecated and not supported in proto3. However, Proto3
+     * implementations should still be able to parse the group wire format and
+     * treat group fields as unknown fields.
      * </pre>
      *
      * <code>TYPE_GROUP = 10;</code>

php/src/Google/Protobuf/Internal/FieldOptions.php

@@ -415,8 +415,8 @@ class FieldOptions extends \Google\Protobuf\Internal\Message
      */
     public function setUninterpretedOption(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\UninterpretedOption::class);
-        $this->uninterpreted_option = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\UninterpretedOption::class);
+        $this->uninterpreted_option = $arr;
         $this->has_uninterpreted_option = true;
     }
 

php/src/Google/Protobuf/Internal/FieldOptions_CType.php

@@ -2,11 +2,11 @@
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # source: google/protobuf/descriptor.proto
 
+namespace Google\Protobuf\Internal;
+
 /**
  * Protobuf enum <code>google.protobuf.FieldOptions.CType</code>
  */
-namespace Google\Protobuf\Internal;
-
 class FieldOptions_CType
 {
     /**

php/src/Google/Protobuf/Internal/FieldOptions_JSType.php

@@ -2,11 +2,11 @@
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # source: google/protobuf/descriptor.proto
 
+namespace Google\Protobuf\Internal;
+
 /**
  * Protobuf enum <code>google.protobuf.FieldOptions.JSType</code>
  */
-namespace Google\Protobuf\Internal;
-
 class FieldOptions_JSType
 {
     /**

php/src/Google/Protobuf/Internal/FileDescriptorProto.php

@@ -206,8 +206,8 @@ class FileDescriptorProto extends \Google\Protobuf\Internal\Message
      */
     public function setDependency(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::STRING);
-        $this->dependency = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::STRING);
+        $this->dependency = $arr;
         $this->has_dependency = true;
     }
 
@@ -237,8 +237,8 @@ class FileDescriptorProto extends \Google\Protobuf\Internal\Message
      */
     public function setPublicDependency(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::INT32);
-        $this->public_dependency = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::INT32);
+        $this->public_dependency = $arr;
         $this->has_public_dependency = true;
     }
 
@@ -270,8 +270,8 @@ class FileDescriptorProto extends \Google\Protobuf\Internal\Message
      */
     public function setWeakDependency(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::INT32);
-        $this->weak_dependency = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::INT32);
+        $this->weak_dependency = $arr;
         $this->has_weak_dependency = true;
     }
 
@@ -301,8 +301,8 @@ class FileDescriptorProto extends \Google\Protobuf\Internal\Message
      */
     public function setMessageType(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\DescriptorProto::class);
-        $this->message_type = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\DescriptorProto::class);
+        $this->message_type = $arr;
         $this->has_message_type = true;
     }
 
@@ -324,8 +324,8 @@ class FileDescriptorProto extends \Google\Protobuf\Internal\Message
      */
     public function setEnumType(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\EnumDescriptorProto::class);
-        $this->enum_type = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\EnumDescriptorProto::class);
+        $this->enum_type = $arr;
         $this->has_enum_type = true;
     }
 
@@ -347,8 +347,8 @@ class FileDescriptorProto extends \Google\Protobuf\Internal\Message
      */
     public function setService(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\ServiceDescriptorProto::class);
-        $this->service = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\ServiceDescriptorProto::class);
+        $this->service = $arr;
         $this->has_service = true;
     }
 
@@ -370,8 +370,8 @@ class FileDescriptorProto extends \Google\Protobuf\Internal\Message
      */
     public function setExtension(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\FieldDescriptorProto::class);
-        $this->extension = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\FieldDescriptorProto::class);
+        $this->extension = $arr;
         $this->has_extension = true;
     }
 

php/src/Google/Protobuf/Internal/FileDescriptorSet.php

@@ -45,8 +45,8 @@ class FileDescriptorSet extends \Google\Protobuf\Internal\Message
      */
     public function setFile(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\FileDescriptorProto::class);
-        $this->file = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\FileDescriptorProto::class);
+        $this->file = $arr;
         $this->has_file = true;
     }
 

php/src/Google/Protobuf/Internal/FileOptions.php

@@ -176,6 +176,16 @@ class FileOptions extends \Google\Protobuf\Internal\Message
      */
     private $swift_prefix = '';
     private $has_swift_prefix = false;
+    /**
+     * <pre>
+     * Sets the php class prefix which is prepended to all php generated classes
+     * from this .proto. Default is empty.
+     * </pre>
+     *
+     * <code>optional string php_class_prefix = 40;</code>
+     */
+    private $php_class_prefix = '';
+    private $has_php_class_prefix = false;
     /**
      * <pre>
      * The parser stores options it doesn't recognize here. See above.
@@ -706,6 +716,39 @@ class FileOptions extends \Google\Protobuf\Internal\Message
         return $this->has_swift_prefix;
     }
 
+    /**
+     * <pre>
+     * Sets the php class prefix which is prepended to all php generated classes
+     * from this .proto. Default is empty.
+     * </pre>
+     *
+     * <code>optional string php_class_prefix = 40;</code>
+     */
+    public function getPhpClassPrefix()
+    {
+        return $this->php_class_prefix;
+    }
+
+    /**
+     * <pre>
+     * Sets the php class prefix which is prepended to all php generated classes
+     * from this .proto. Default is empty.
+     * </pre>
+     *
+     * <code>optional string php_class_prefix = 40;</code>
+     */
+    public function setPhpClassPrefix($var)
+    {
+        GPBUtil::checkString($var, True);
+        $this->php_class_prefix = $var;
+        $this->has_php_class_prefix = true;
+    }
+
+    public function hasPhpClassPrefix()
+    {
+        return $this->has_php_class_prefix;
+    }
+
     /**
      * <pre>
      * The parser stores options it doesn't recognize here. See above.
@@ -727,8 +770,8 @@ class FileOptions extends \Google\Protobuf\Internal\Message
      */
     public function setUninterpretedOption(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\UninterpretedOption::class);
-        $this->uninterpreted_option = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\UninterpretedOption::class);
+        $this->uninterpreted_option = $arr;
         $this->has_uninterpreted_option = true;
     }
 

php/src/Google/Protobuf/Internal/FileOptions_OptimizeMode.php

@@ -2,6 +2,8 @@
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # source: google/protobuf/descriptor.proto
 
+namespace Google\Protobuf\Internal;
+
 /**
  * <pre>
  * Generated classes can be optimized for speed or code size.
@@ -9,8 +11,6 @@
  *
  * Protobuf enum <code>google.protobuf.FileOptions.OptimizeMode</code>
  */
-namespace Google\Protobuf\Internal;
-
 class FileOptions_OptimizeMode
 {
     /**

php/src/Google/Protobuf/Internal/GeneratedCodeInfo.php

@@ -61,8 +61,8 @@ class GeneratedCodeInfo extends \Google\Protobuf\Internal\Message
      */
     public function setAnnotation(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\GeneratedCodeInfo_Annotation::class);
-        $this->annotation = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\GeneratedCodeInfo_Annotation::class);
+        $this->annotation = $arr;
         $this->has_annotation = true;
     }
 

php/src/Google/Protobuf/Internal/GeneratedCodeInfo_Annotation.php

@@ -85,8 +85,8 @@ class GeneratedCodeInfo_Annotation extends \Google\Protobuf\Internal\Message
      */
     public function setPath(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::INT32);
-        $this->path = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::INT32);
+        $this->path = $arr;
         $this->has_path = true;
     }
 

php/src/Google/Protobuf/Internal/MessageOptions.php

@@ -320,8 +320,8 @@ class MessageOptions extends \Google\Protobuf\Internal\Message
      */
     public function setUninterpretedOption(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\UninterpretedOption::class);
-        $this->uninterpreted_option = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\UninterpretedOption::class);
+        $this->uninterpreted_option = $arr;
         $this->has_uninterpreted_option = true;
     }
 

php/src/Google/Protobuf/Internal/MethodOptions.php

@@ -129,8 +129,8 @@ class MethodOptions extends \Google\Protobuf\Internal\Message
      */
     public function setUninterpretedOption(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\UninterpretedOption::class);
-        $this->uninterpreted_option = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\UninterpretedOption::class);
+        $this->uninterpreted_option = $arr;
         $this->has_uninterpreted_option = true;
     }
 

php/src/Google/Protobuf/Internal/MethodOptions_IdempotencyLevel.php

@@ -2,6 +2,8 @@
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # source: google/protobuf/descriptor.proto
 
+namespace Google\Protobuf\Internal;
+
 /**
  * <pre>
  * Is this method side-effect-free (or safe in HTTP parlance), or idempotent,
@@ -11,8 +13,6 @@
  *
  * Protobuf enum <code>google.protobuf.MethodOptions.IdempotencyLevel</code>
  */
-namespace Google\Protobuf\Internal;
-
 class MethodOptions_IdempotencyLevel
 {
     /**

php/src/Google/Protobuf/Internal/OneofOptions.php

@@ -52,8 +52,8 @@ class OneofOptions extends \Google\Protobuf\Internal\Message
      */
     public function setUninterpretedOption(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\UninterpretedOption::class);
-        $this->uninterpreted_option = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\UninterpretedOption::class);
+        $this->uninterpreted_option = $arr;
         $this->has_uninterpreted_option = true;
     }
 

php/src/Google/Protobuf/Internal/ServiceDescriptorProto.php

@@ -77,8 +77,8 @@ class ServiceDescriptorProto extends \Google\Protobuf\Internal\Message
      */
     public function setMethod(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\MethodDescriptorProto::class);
-        $this->method = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\MethodDescriptorProto::class);
+        $this->method = $arr;
         $this->has_method = true;
     }
 

php/src/Google/Protobuf/Internal/ServiceOptions.php

@@ -101,8 +101,8 @@ class ServiceOptions extends \Google\Protobuf\Internal\Message
      */
     public function setUninterpretedOption(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\UninterpretedOption::class);
-        $this->uninterpreted_option = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\UninterpretedOption::class);
+        $this->uninterpreted_option = $arr;
         $this->has_uninterpreted_option = true;
     }
 

php/src/Google/Protobuf/Internal/SourceCodeInfo.php

@@ -177,8 +177,8 @@ class SourceCodeInfo extends \Google\Protobuf\Internal\Message
      */
     public function setLocation(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\SourceCodeInfo_Location::class);
-        $this->location = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\SourceCodeInfo_Location::class);
+        $this->location = $arr;
         $this->has_location = true;
     }
 

php/src/Google/Protobuf/Internal/SourceCodeInfo_Location.php

@@ -179,8 +179,8 @@ class SourceCodeInfo_Location extends \Google\Protobuf\Internal\Message
      */
     public function setPath(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::INT32);
-        $this->path = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::INT32);
+        $this->path = $arr;
         $this->has_path = true;
     }
 
@@ -218,8 +218,8 @@ class SourceCodeInfo_Location extends \Google\Protobuf\Internal\Message
      */
     public function setSpan(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::INT32);
-        $this->span = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::INT32);
+        $this->span = $arr;
         $this->has_span = true;
     }
 
@@ -365,8 +365,8 @@ class SourceCodeInfo_Location extends \Google\Protobuf\Internal\Message
      */
     public function setLeadingDetachedComments(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::STRING);
-        $this->leading_detached_comments = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::STRING);
+        $this->leading_detached_comments = $arr;
         $this->has_leading_detached_comments = true;
     }
 

php/src/Google/Protobuf/Internal/UninterpretedOption.php

@@ -84,8 +84,8 @@ class UninterpretedOption extends \Google\Protobuf\Internal\Message
      */
     public function setName(&$var)
     {
-        GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\UninterpretedOption_NamePart::class);
-        $this->name = $var;
+        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\UninterpretedOption_NamePart::class);
+        $this->name = $arr;
         $this->has_name = true;
     }
 

php/src/Google/Protobuf/descriptor.php

@@ -78,14 +78,14 @@ class FileDescriptor
         $file->setPackage($proto->getPackage());
         foreach ($proto->getMessageType() as $message_proto) {
             $file->addMessageType(Descriptor::buildFromProto(
-                $message_proto, $file->getPackage(), ""));
+                $message_proto, $proto, ""));
         }
         foreach ($proto->getEnumType() as $enum_proto) {
             $file->getEnumType()[] =
                 $file->addEnumType(
                     EnumDescriptor::buildFromProto(
                         $enum_proto,
-                        $file->getPackage(),
+                        $proto,
                         ""));
         }
         return $file;
@@ -182,7 +182,7 @@ class Descriptor
         return $this->options;
     }
 
-    public static function buildFromProto($proto, $package, $containing)
+    public static function buildFromProto($proto, $file_proto, $containing)
     {
         $desc = new Descriptor();
 
@@ -192,7 +192,7 @@ class Descriptor
         getFullClassName(
             $proto,
             $containing,
-            $package,
+            $file_proto,
             $message_name_without_package,
             $classname,
             $fullname);
@@ -207,7 +207,7 @@ class Descriptor
         // Handle nested types.
         foreach ($proto->getNestedType() as $nested_proto) {
             $desc->addNestedType(Descriptor::buildFromProto(
-              $nested_proto, $package, $message_name_without_package));
+              $nested_proto, $file_proto, $message_name_without_package));
         }
 
         // Handle oneof fields.
@@ -220,43 +220,46 @@ class Descriptor
     }
 }
 
-function addPrefixIfSpecial(
+function getClassNameWithoutPackage(
     $name,
-    $package)
+    $file_proto)
 {
-    if ($name === "Empty" && $package === "google.protobuf") {
+    if ($name === "Empty" && $file_proto->getPackage() === "google.protobuf") {
         return "GPBEmpty";
     } else {
-        return $name;
+        $option = $file_proto->getOptions();
+        $prefix = is_null($option) ? "" : $option->getPhpClassPrefix();
+        // Nested message class names are seperated by '_', and package names
+        // are seperated by '\'.
+        return $prefix . implode('_', array_map('ucwords',
+                               explode('.', $name)));
     }
 }
 
 function getFullClassName(
     $proto,
     $containing,
-    $package,
+    $file_proto,
     &$message_name_without_package,
     &$classname,
     &$fullname)
 {
     // Full name needs to start with '.'.
-    $message_name_without_package =
-        addPrefixIfSpecial($proto->getName(), $package);
+    $message_name_without_package = $proto->getName();
     if ($containing !== "") {
         $message_name_without_package =
             $containing . "." . $message_name_without_package;
     }
+
+    $package = $file_proto->getPackage();
     if ($package === "") {
         $fullname = "." . $message_name_without_package;
     } else {
         $fullname = "." . $package . "." . $message_name_without_package;
     }
 
-    // Nested message class names are seperated by '_', and package names are
-    // seperated by '\'.
     $class_name_without_package =
-        implode('_', array_map('ucwords',
-                               explode('.', $message_name_without_package)));
+        getClassNameWithoutPackage($message_name_without_package, $file_proto);
     if ($package === "") {
         $classname = $class_name_without_package;
     } else {
@@ -333,7 +336,7 @@ class EnumDescriptor
         return $this->klass;
     }
 
-    public static function buildFromProto($proto, $package, $containing)
+    public static function buildFromProto($proto, $file_proto, $containing)
     {
         $desc = new EnumDescriptor();
 
@@ -343,7 +346,7 @@ class EnumDescriptor
         getFullClassName(
             $proto,
             $containing,
-            $package,
+            $file_proto,
             $enum_name_without_package,
             $classname,
             $fullname);

php/tests/encode_decode_test.php

@@ -194,7 +194,7 @@ class EncodeDecodeTest extends TestBase
     {
         $m = new TestMessage();
         $m->setOptionalInt32(-1);
-        $data = $m->encode();
+        $data = $m->serializeToString();
         $this->assertSame("08ffffffffffffffffff01", bin2hex($data));
     }
 
@@ -202,12 +202,12 @@ class EncodeDecodeTest extends TestBase
     {
         $m = new TestMessage();
         $this->assertEquals(0, $m->getOptionalInt32());
-        $m->decode(hex2bin("08ffffffffffffffffff01"));
+        $m->mergeFromString(hex2bin("08ffffffffffffffffff01"));
         $this->assertEquals(-1, $m->getOptionalInt32());
 
         $m = new TestMessage();
         $this->assertEquals(0, $m->getOptionalInt32());
-        $m->decode(hex2bin("08ffffffff0f"));
+        $m->mergeFromString(hex2bin("08ffffffff0f"));
         $this->assertEquals(-1, $m->getOptionalInt32());
     }
 

php/tests/gdb_test.sh

@@ -3,7 +3,7 @@
 # gdb --args php -dextension=../ext/google/protobuf/modules/protobuf.so `which
 # phpunit` --bootstrap autoload.php tmp_test.php
 #
-gdb --args php -dextension=../ext/google/protobuf/modules/protobuf.so `which phpunit` --bootstrap autoload.php encode_decode_test.php
+gdb --args php -dextension=../ext/google/protobuf/modules/protobuf.so `which phpunit` --bootstrap autoload.php array_test.php
 #
 # # gdb --args php -dextension=../ext/google/protobuf/modules/protobuf.so
 # memory_leak_test.php

php/tests/generated_class_test.php

@@ -9,6 +9,7 @@ use Google\Protobuf\Internal\RepeatedField;
 use Google\Protobuf\Internal\MapField;
 use Google\Protobuf\Internal\GPBType;
 use Foo\TestEnum;
+use Foo\TestIncludePrefixMessage;
 use Foo\TestMessage;
 use Foo\TestMessage_Sub;
 
@@ -838,4 +839,17 @@ class GeneratedClassTest extends TestBase
     {
         $m = new NoNameSpaceEnum();
     }
+
+    #########################################################
+    # Test message with given prefix.
+    #########################################################
+
+    public function testPrefixMessage()
+    {
+        $m = new TestIncludePrefixMessage();
+        $n = new PrefixTestPrefix();
+        $n->setA(1);
+        $m->setPrefixMessage($n);
+        $this->assertSame(1, $m->getPrefixMessage()->getA());
+    }
 }

php/tests/memory_leak_test.php

@@ -2,8 +2,10 @@
 
 # phpunit has memory leak by itself. Thus, it cannot be used to test memory leak.
 
+require_once('generated/PrefixTestPrefix.php');
 require_once('generated/Bar/TestInclude.php');
 require_once('generated/Foo/TestEnum.php');
+require_once('generated/Foo/TestIncludePrefixMessage.php');
 require_once('generated/Foo/TestMessage.php');
 require_once('generated/Foo/TestMessage_Sub.php');
 require_once('generated/Foo/TestPackedMessage.php');
@@ -11,6 +13,7 @@ require_once('generated/Foo/TestPhpDoc.php');
 require_once('generated/Foo/TestUnpackedMessage.php');
 require_once('generated/GPBMetadata/Proto/Test.php');
 require_once('generated/GPBMetadata/Proto/TestInclude.php');
+require_once('generated/GPBMetadata/Proto/TestPrefix.php');
 require_once('test_util.php');
 
 use Google\Protobuf\Internal\RepeatedField;

php/tests/proto/test.proto

 syntax = "proto3";
 
 import 'proto/test_include.proto';
+import 'proto/test_prefix.proto';
 
 package foo;
 
@@ -142,3 +143,7 @@ message TestUnpackedMessage {
 message TestPhpDoc {
   int32 a = 1;
 }
+
+message TestIncludePrefixMessage {
+  TestPrefix prefix_message = 1;
+}

php/tests/proto/test_prefix.proto

+syntax = "proto3";
+
+option php_class_prefix = "Prefix";
+
+message TestPrefix {
+  int32 a = 1;
+}

src/google/protobuf/compiler/php/php_generator.cc

@@ -90,7 +90,7 @@ std::string MessagePrefix(const Descriptor* message) {
       message->file()->package() == "google.protobuf") {
     return "GPB";
   } else {
-    return "";
+    return (message->file()->options()).php_class_prefix();
   }
 }
 
@@ -103,8 +103,12 @@ std::string MessageName(const Descriptor* message, bool is_descriptor) {
   }
   message_name = MessagePrefix(message) + message_name;
 
-  return PhpName(message->file()->package(), is_descriptor) + '\\' +
-         message_name;
+  if (message->file()->package() == "") {
+    return message_name;
+  } else {
+    return PhpName(message->file()->package(), is_descriptor) + '\\' +
+           message_name;
+  }
 }
 
 std::string MessageFullName(const Descriptor* message, bool is_descriptor) {

src/google/protobuf/descriptor.proto

@@ -376,6 +376,10 @@ message FileOptions {
   // to prefix the types/symbols defined.
   optional string swift_prefix = 39;
 
+  // Sets the php class prefix which is prepended to all php generated classes
+  // from this .proto. Default is empty.
+  optional string php_class_prefix = 40;
+
   // The parser stores options it doesn't recognize here. See above.
   repeated UninterpretedOption uninterpreted_option = 999;
 

tests.sh

@@ -358,7 +358,7 @@ generate_php_test_proto() {
   # Generate test file
   rm -rf generated
   mkdir generated
-  ../../src/protoc --php_out=generated proto/test.proto proto/test_include.proto proto/test_no_namespace.proto
+  ../../src/protoc --php_out=generated proto/test.proto proto/test_include.proto proto/test_no_namespace.proto proto/test_prefix.proto
   pushd ../../src
   ./protoc --php_out=../php/tests/generated google/protobuf/empty.proto
   popd