remove pass by reference for php setters (#3344)

* remove pass by reference for php setters

* comments out memory leak test

22 files changed, 42 insertions, 42 deletions

diff --git a/php/src/Google/Protobuf/Internal/DescriptorProto.php b/php/src/Google/Protobuf/Internal/DescriptorProto.php
index 0fdaecfc..3f975b8a 100644
--- a/php/src/Google/Protobuf/Internal/DescriptorProto.php
+++ b/php/src/Google/Protobuf/Internal/DescriptorProto.php
@@ -119,7 +119,7 @@ class DescriptorProto extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\FieldDescriptorProto[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setField(&$var)
+    public function setField($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\FieldDescriptorProto::class);
         $this->field = $arr;
@@ -147,7 +147,7 @@ class DescriptorProto extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\FieldDescriptorProto[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setExtension(&$var)
+    public function setExtension($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\FieldDescriptorProto::class);
         $this->extension = $arr;
@@ -175,7 +175,7 @@ class DescriptorProto extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\DescriptorProto[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setNestedType(&$var)
+    public function setNestedType($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\DescriptorProto::class);
         $this->nested_type = $arr;
@@ -203,7 +203,7 @@ class DescriptorProto extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\EnumDescriptorProto[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setEnumType(&$var)
+    public function setEnumType($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\EnumDescriptorProto::class);
         $this->enum_type = $arr;
@@ -231,7 +231,7 @@ class DescriptorProto extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\DescriptorProto_ExtensionRange[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setExtensionRange(&$var)
+    public function setExtensionRange($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\DescriptorProto_ExtensionRange::class);
         $this->extension_range = $arr;
@@ -259,7 +259,7 @@ class DescriptorProto extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\OneofDescriptorProto[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setOneofDecl(&$var)
+    public function setOneofDecl($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\OneofDescriptorProto::class);
         $this->oneof_decl = $arr;
@@ -287,7 +287,7 @@ class DescriptorProto extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\MessageOptions $var
      * @return $this
      */
-    public function setOptions(&$var)
+    public function setOptions($var)
     {
         GPBUtil::checkMessage($var, \Google\Protobuf\Internal\MessageOptions::class);
         $this->options = $var;
@@ -315,7 +315,7 @@ class DescriptorProto extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\DescriptorProto_ReservedRange[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setReservedRange(&$var)
+    public function setReservedRange($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\DescriptorProto_ReservedRange::class);
         $this->reserved_range = $arr;
@@ -349,7 +349,7 @@ class DescriptorProto extends \Google\Protobuf\Internal\Message
      * @param string[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setReservedName(&$var)
+    public function setReservedName($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::STRING);
         $this->reserved_name = $arr;
diff --git a/php/src/Google/Protobuf/Internal/EnumDescriptorProto.php b/php/src/Google/Protobuf/Internal/EnumDescriptorProto.php
index 6cdaf2df..adc21fc6 100644
--- a/php/src/Google/Protobuf/Internal/EnumDescriptorProto.php
+++ b/php/src/Google/Protobuf/Internal/EnumDescriptorProto.php
@@ -81,7 +81,7 @@ class EnumDescriptorProto extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\EnumValueDescriptorProto[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setValue(&$var)
+    public function setValue($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\EnumValueDescriptorProto::class);
         $this->value = $arr;
@@ -109,7 +109,7 @@ class EnumDescriptorProto extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\EnumOptions $var
      * @return $this
      */
-    public function setOptions(&$var)
+    public function setOptions($var)
     {
         GPBUtil::checkMessage($var, \Google\Protobuf\Internal\EnumOptions::class);
         $this->options = $var;
diff --git a/php/src/Google/Protobuf/Internal/EnumOptions.php b/php/src/Google/Protobuf/Internal/EnumOptions.php
index 3c3a9e22..6067d5a0 100644
--- a/php/src/Google/Protobuf/Internal/EnumOptions.php
+++ b/php/src/Google/Protobuf/Internal/EnumOptions.php
@@ -137,7 +137,7 @@ class EnumOptions extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\UninterpretedOption[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setUninterpretedOption(&$var)
+    public function setUninterpretedOption($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\UninterpretedOption::class);
         $this->uninterpreted_option = $arr;
diff --git a/php/src/Google/Protobuf/Internal/EnumValueDescriptorProto.php b/php/src/Google/Protobuf/Internal/EnumValueDescriptorProto.php
index 89d6707f..b761fbcf 100644
--- a/php/src/Google/Protobuf/Internal/EnumValueDescriptorProto.php
+++ b/php/src/Google/Protobuf/Internal/EnumValueDescriptorProto.php
@@ -109,7 +109,7 @@ class EnumValueDescriptorProto extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\EnumValueOptions $var
      * @return $this
      */
-    public function setOptions(&$var)
+    public function setOptions($var)
     {
         GPBUtil::checkMessage($var, \Google\Protobuf\Internal\EnumValueOptions::class);
         $this->options = $var;
diff --git a/php/src/Google/Protobuf/Internal/EnumValueOptions.php b/php/src/Google/Protobuf/Internal/EnumValueOptions.php
index 3b5c58e4..b7bcd237 100644
--- a/php/src/Google/Protobuf/Internal/EnumValueOptions.php
+++ b/php/src/Google/Protobuf/Internal/EnumValueOptions.php
@@ -95,7 +95,7 @@ class EnumValueOptions extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\UninterpretedOption[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setUninterpretedOption(&$var)
+    public function setUninterpretedOption($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\UninterpretedOption::class);
         $this->uninterpreted_option = $arr;
diff --git a/php/src/Google/Protobuf/Internal/FieldDescriptorProto.php b/php/src/Google/Protobuf/Internal/FieldDescriptorProto.php
index ae61be47..fbe4e1bf 100644
--- a/php/src/Google/Protobuf/Internal/FieldDescriptorProto.php
+++ b/php/src/Google/Protobuf/Internal/FieldDescriptorProto.php
@@ -418,7 +418,7 @@ class FieldDescriptorProto extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\FieldOptions $var
      * @return $this
      */
-    public function setOptions(&$var)
+    public function setOptions($var)
     {
         GPBUtil::checkMessage($var, \Google\Protobuf\Internal\FieldOptions::class);
         $this->options = $var;
diff --git a/php/src/Google/Protobuf/Internal/FieldOptions.php b/php/src/Google/Protobuf/Internal/FieldOptions.php
index 157c0f82..593536ff 100644
--- a/php/src/Google/Protobuf/Internal/FieldOptions.php
+++ b/php/src/Google/Protobuf/Internal/FieldOptions.php
@@ -404,7 +404,7 @@ class FieldOptions extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\UninterpretedOption[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setUninterpretedOption(&$var)
+    public function setUninterpretedOption($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\UninterpretedOption::class);
         $this->uninterpreted_option = $arr;
diff --git a/php/src/Google/Protobuf/Internal/FileDescriptorProto.php b/php/src/Google/Protobuf/Internal/FileDescriptorProto.php
index 3b1567d1..c61cf917 100644
--- a/php/src/Google/Protobuf/Internal/FileDescriptorProto.php
+++ b/php/src/Google/Protobuf/Internal/FileDescriptorProto.php
@@ -187,7 +187,7 @@ class FileDescriptorProto extends \Google\Protobuf\Internal\Message
      * @param string[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setDependency(&$var)
+    public function setDependency($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::STRING);
         $this->dependency = $arr;
@@ -219,7 +219,7 @@ class FileDescriptorProto extends \Google\Protobuf\Internal\Message
      * @param int[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setPublicDependency(&$var)
+    public function setPublicDependency($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::INT32);
         $this->public_dependency = $arr;
@@ -253,7 +253,7 @@ class FileDescriptorProto extends \Google\Protobuf\Internal\Message
      * @param int[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setWeakDependency(&$var)
+    public function setWeakDependency($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::INT32);
         $this->weak_dependency = $arr;
@@ -285,7 +285,7 @@ class FileDescriptorProto extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\DescriptorProto[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setMessageType(&$var)
+    public function setMessageType($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\DescriptorProto::class);
         $this->message_type = $arr;
@@ -313,7 +313,7 @@ class FileDescriptorProto extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\EnumDescriptorProto[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setEnumType(&$var)
+    public function setEnumType($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\EnumDescriptorProto::class);
         $this->enum_type = $arr;
@@ -341,7 +341,7 @@ class FileDescriptorProto extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\ServiceDescriptorProto[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setService(&$var)
+    public function setService($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\ServiceDescriptorProto::class);
         $this->service = $arr;
@@ -369,7 +369,7 @@ class FileDescriptorProto extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\FieldDescriptorProto[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setExtension(&$var)
+    public function setExtension($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\FieldDescriptorProto::class);
         $this->extension = $arr;
@@ -397,7 +397,7 @@ class FileDescriptorProto extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\FileOptions $var
      * @return $this
      */
-    public function setOptions(&$var)
+    public function setOptions($var)
     {
         GPBUtil::checkMessage($var, \Google\Protobuf\Internal\FileOptions::class);
         $this->options = $var;
@@ -435,7 +435,7 @@ class FileDescriptorProto extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\SourceCodeInfo $var
      * @return $this
      */
-    public function setSourceCodeInfo(&$var)
+    public function setSourceCodeInfo($var)
     {
         GPBUtil::checkMessage($var, \Google\Protobuf\Internal\SourceCodeInfo::class);
         $this->source_code_info = $var;
diff --git a/php/src/Google/Protobuf/Internal/FileDescriptorSet.php b/php/src/Google/Protobuf/Internal/FileDescriptorSet.php
index 591e2a81..2b6ed0ab 100644
--- a/php/src/Google/Protobuf/Internal/FileDescriptorSet.php
+++ b/php/src/Google/Protobuf/Internal/FileDescriptorSet.php
@@ -44,7 +44,7 @@ class FileDescriptorSet extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\FileDescriptorProto[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setFile(&$var)
+    public function setFile($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\FileDescriptorProto::class);
         $this->file = $arr;
diff --git a/php/src/Google/Protobuf/Internal/FileOptions.php b/php/src/Google/Protobuf/Internal/FileOptions.php
index 2202102b..200ee9de 100644
--- a/php/src/Google/Protobuf/Internal/FileOptions.php
+++ b/php/src/Google/Protobuf/Internal/FileOptions.php
@@ -812,7 +812,7 @@ class FileOptions extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\UninterpretedOption[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setUninterpretedOption(&$var)
+    public function setUninterpretedOption($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\UninterpretedOption::class);
         $this->uninterpreted_option = $arr;
diff --git a/php/src/Google/Protobuf/Internal/GeneratedCodeInfo.php b/php/src/Google/Protobuf/Internal/GeneratedCodeInfo.php
index 35b47526..a69bef85 100644
--- a/php/src/Google/Protobuf/Internal/GeneratedCodeInfo.php
+++ b/php/src/Google/Protobuf/Internal/GeneratedCodeInfo.php
@@ -54,7 +54,7 @@ class GeneratedCodeInfo extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\GeneratedCodeInfo_Annotation[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setAnnotation(&$var)
+    public function setAnnotation($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\GeneratedCodeInfo_Annotation::class);
         $this->annotation = $arr;
diff --git a/php/src/Google/Protobuf/Internal/GeneratedCodeInfo_Annotation.php b/php/src/Google/Protobuf/Internal/GeneratedCodeInfo_Annotation.php
index c2e22e89..86c9f629 100644
--- a/php/src/Google/Protobuf/Internal/GeneratedCodeInfo_Annotation.php
+++ b/php/src/Google/Protobuf/Internal/GeneratedCodeInfo_Annotation.php
@@ -74,7 +74,7 @@ class GeneratedCodeInfo_Annotation extends \Google\Protobuf\Internal\Message
      * @param int[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setPath(&$var)
+    public function setPath($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::INT32);
         $this->path = $arr;
diff --git a/php/src/Google/Protobuf/Internal/MessageOptions.php b/php/src/Google/Protobuf/Internal/MessageOptions.php
index 3677ca38..0a0bfb2d 100644
--- a/php/src/Google/Protobuf/Internal/MessageOptions.php
+++ b/php/src/Google/Protobuf/Internal/MessageOptions.php
@@ -311,7 +311,7 @@ class MessageOptions extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\UninterpretedOption[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setUninterpretedOption(&$var)
+    public function setUninterpretedOption($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\UninterpretedOption::class);
         $this->uninterpreted_option = $arr;
diff --git a/php/src/Google/Protobuf/Internal/MethodDescriptorProto.php b/php/src/Google/Protobuf/Internal/MethodDescriptorProto.php
index 69c25b69..95b614f3 100644
--- a/php/src/Google/Protobuf/Internal/MethodDescriptorProto.php
+++ b/php/src/Google/Protobuf/Internal/MethodDescriptorProto.php
@@ -165,7 +165,7 @@ class MethodDescriptorProto extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\MethodOptions $var
      * @return $this
      */
-    public function setOptions(&$var)
+    public function setOptions($var)
     {
         GPBUtil::checkMessage($var, \Google\Protobuf\Internal\MethodOptions::class);
         $this->options = $var;
diff --git a/php/src/Google/Protobuf/Internal/MethodOptions.php b/php/src/Google/Protobuf/Internal/MethodOptions.php
index 5b2db776..17a8b453 100644
--- a/php/src/Google/Protobuf/Internal/MethodOptions.php
+++ b/php/src/Google/Protobuf/Internal/MethodOptions.php
@@ -128,7 +128,7 @@ class MethodOptions extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\UninterpretedOption[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setUninterpretedOption(&$var)
+    public function setUninterpretedOption($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\UninterpretedOption::class);
         $this->uninterpreted_option = $arr;
diff --git a/php/src/Google/Protobuf/Internal/OneofDescriptorProto.php b/php/src/Google/Protobuf/Internal/OneofDescriptorProto.php
index 0d4f3bdc..255ff572 100644
--- a/php/src/Google/Protobuf/Internal/OneofDescriptorProto.php
+++ b/php/src/Google/Protobuf/Internal/OneofDescriptorProto.php
@@ -76,7 +76,7 @@ class OneofDescriptorProto extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\OneofOptions $var
      * @return $this
      */
-    public function setOptions(&$var)
+    public function setOptions($var)
     {
         GPBUtil::checkMessage($var, \Google\Protobuf\Internal\OneofOptions::class);
         $this->options = $var;
diff --git a/php/src/Google/Protobuf/Internal/OneofOptions.php b/php/src/Google/Protobuf/Internal/OneofOptions.php
index aa8c934c..fb8c3bfa 100644
--- a/php/src/Google/Protobuf/Internal/OneofOptions.php
+++ b/php/src/Google/Protobuf/Internal/OneofOptions.php
@@ -47,7 +47,7 @@ class OneofOptions extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\UninterpretedOption[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setUninterpretedOption(&$var)
+    public function setUninterpretedOption($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\UninterpretedOption::class);
         $this->uninterpreted_option = $arr;
diff --git a/php/src/Google/Protobuf/Internal/ServiceDescriptorProto.php b/php/src/Google/Protobuf/Internal/ServiceDescriptorProto.php
index 963cd650..e10bd533 100644
--- a/php/src/Google/Protobuf/Internal/ServiceDescriptorProto.php
+++ b/php/src/Google/Protobuf/Internal/ServiceDescriptorProto.php
@@ -81,7 +81,7 @@ class ServiceDescriptorProto extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\MethodDescriptorProto[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setMethod(&$var)
+    public function setMethod($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\MethodDescriptorProto::class);
         $this->method = $arr;
@@ -109,7 +109,7 @@ class ServiceDescriptorProto extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\ServiceOptions $var
      * @return $this
      */
-    public function setOptions(&$var)
+    public function setOptions($var)
     {
         GPBUtil::checkMessage($var, \Google\Protobuf\Internal\ServiceOptions::class);
         $this->options = $var;
diff --git a/php/src/Google/Protobuf/Internal/ServiceOptions.php b/php/src/Google/Protobuf/Internal/ServiceOptions.php
index ea649865..a2319170 100644
--- a/php/src/Google/Protobuf/Internal/ServiceOptions.php
+++ b/php/src/Google/Protobuf/Internal/ServiceOptions.php
@@ -95,7 +95,7 @@ class ServiceOptions extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\UninterpretedOption[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setUninterpretedOption(&$var)
+    public function setUninterpretedOption($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\UninterpretedOption::class);
         $this->uninterpreted_option = $arr;
diff --git a/php/src/Google/Protobuf/Internal/SourceCodeInfo.php b/php/src/Google/Protobuf/Internal/SourceCodeInfo.php
index 65530586..d21fe8eb 100644
--- a/php/src/Google/Protobuf/Internal/SourceCodeInfo.php
+++ b/php/src/Google/Protobuf/Internal/SourceCodeInfo.php
@@ -170,7 +170,7 @@ class SourceCodeInfo extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\SourceCodeInfo_Location[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setLocation(&$var)
+    public function setLocation($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\SourceCodeInfo_Location::class);
         $this->location = $arr;
diff --git a/php/src/Google/Protobuf/Internal/SourceCodeInfo_Location.php b/php/src/Google/Protobuf/Internal/SourceCodeInfo_Location.php
index b33013b8..210bf073 100644
--- a/php/src/Google/Protobuf/Internal/SourceCodeInfo_Location.php
+++ b/php/src/Google/Protobuf/Internal/SourceCodeInfo_Location.php
@@ -170,7 +170,7 @@ class SourceCodeInfo_Location extends \Google\Protobuf\Internal\Message
      * @param int[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setPath(&$var)
+    public function setPath($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::INT32);
         $this->path = $arr;
@@ -210,7 +210,7 @@ class SourceCodeInfo_Location extends \Google\Protobuf\Internal\Message
      * @param int[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setSpan(&$var)
+    public function setSpan($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::INT32);
         $this->span = $arr;
@@ -368,7 +368,7 @@ class SourceCodeInfo_Location extends \Google\Protobuf\Internal\Message
      * @param string[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setLeadingDetachedComments(&$var)
+    public function setLeadingDetachedComments($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::STRING);
         $this->leading_detached_comments = $arr;
diff --git a/php/src/Google/Protobuf/Internal/UninterpretedOption.php b/php/src/Google/Protobuf/Internal/UninterpretedOption.php
index a4fab343..daa730d0 100644
--- a/php/src/Google/Protobuf/Internal/UninterpretedOption.php
+++ b/php/src/Google/Protobuf/Internal/UninterpretedOption.php
@@ -81,7 +81,7 @@ class UninterpretedOption extends \Google\Protobuf\Internal\Message
      * @param \Google\Protobuf\Internal\UninterpretedOption_NamePart[]|\Google\Protobuf\Internal\RepeatedField $var
      * @return $this
      */
-    public function setName(&$var)
+    public function setName($var)
     {
         $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Protobuf\Internal\UninterpretedOption_NamePart::class);
         $this->name = $arr;