Breaking Change: Remove deprecated PHP APIs FieldDescriptor getLabel, use IsRepeated or isRequired instead.

https://protobuf.dev/news/2025-09-19/#php-remove-apis

PiperOrigin-RevId: 845456074

Author: protobuf-github-bot

php/ext/google/protobuf/def.c

@@ -387,20 +387,6 @@ PHP_METHOD(FieldDescriptor, getNumber) {
   RETURN_LONG(upb_FieldDef_Number(intern->fielddef));
 }
 
-/*
- * FieldDescriptor::getLabel()
- *
- * DEPRECATED: Use isRequired() or isRepeated() instead.
- *
- * Returns the label of this field as an integer.
- */
-PHP_METHOD(FieldDescriptor, getLabel) {
-  zend_error(E_USER_DEPRECATED,
-             "getLabel is deprecated. Use isRequired or isRepeated instead.\n");
-  FieldDescriptor* intern = (FieldDescriptor*)Z_OBJ_P(getThis());
-  RETURN_LONG(upb_FieldDef_Label(intern->fielddef));
-}
-
 /*
  * FieldDescriptor::isRequired()
  *
@@ -541,7 +527,6 @@ PHP_METHOD(FieldDescriptor, getMessageType) {
 static zend_function_entry FieldDescriptor_methods[] = {
   PHP_ME(FieldDescriptor, getName,   arginfo_void, ZEND_ACC_PUBLIC)
   PHP_ME(FieldDescriptor, getNumber, arginfo_void, ZEND_ACC_PUBLIC)
-  PHP_ME(FieldDescriptor, getLabel,  arginfo_void, ZEND_ACC_PUBLIC)
   PHP_ME(FieldDescriptor, isRequired, arginfo_void, ZEND_ACC_PUBLIC)
   PHP_ME(FieldDescriptor, isRepeated, arginfo_void, ZEND_ACC_PUBLIC)
   PHP_ME(FieldDescriptor, getType,   arginfo_void, ZEND_ACC_PUBLIC)

php/tests/DescriptorsTest.php

@@ -16,10 +16,6 @@ class DescriptorsTest extends TestBase
 {
 
     // Redefine these here for compatibility with c extension
-    const GPBLABEL_OPTIONAL = 1;
-    const GPBLABEL_REQUIRED = 2;
-    const GPBLABEL_REPEATED = 3;
-
     const GPBTYPE_DOUBLE   =  1;
     const GPBTYPE_FLOAT    =  2;
     const GPBTYPE_INT64    =  3;