Add zend_get_opcode_id() to get opcode id from name

Author: twose

UPGRADING.INTERNALS

@@ -3,11 +3,14 @@ PHP 8.1 INTERNALS UPGRADE NOTES
 1. Internal API changes
   a. Removed Zend APIs
   b. Zend Stream API
+  c. zend_get_opcode_id()
 
 2. Build system changes
 
 3. Module changes
   a. ext/hash
+  b. ext/pdo
+  c. ext/standard
 
 ========================
 1. Internal API changes
@@ -31,6 +34,7 @@ PHP 8.1 INTERNALS UPGRADE NOTES
         the same function where they were created by zend_stream_init_*()). Previously there were two different
         destructors zend_destroy_file_handle() and zend_file_handle_dtor().
       - zend_ini_scanner_globals.filename now is zend_string*
+  c. Added the zend_get_opcode_id() function, which is intended to get opcode id from name.
 
 ========================
 2. Build system changes

Zend/zend_vm_opcodes.c

@@ -442,3 +442,12 @@ ZEND_API uint32_t ZEND_FASTCALL zend_get_opcode_flags(zend_uchar opcode) {
 	}
 	return zend_vm_opcodes_flags[opcode];
 }
+ZEND_API zend_uchar zend_get_opcode_id(const char *name, size_t length) {
+	zend_uchar opcode;
+	for (opcode = 0; opcode < (sizeof(zend_vm_opcodes_names) / sizeof(zend_vm_opcodes_names[0])) - 1; opcode++) {
+		if (strncmp(zend_vm_opcodes_names[opcode], name, length) == 0) {
+			return opcode;
+		}
+	}
+	return ZEND_VM_LAST_OPCODE + 1;
+}

Zend/zend_vm_opcodes.h

@@ -79,6 +79,7 @@ BEGIN_EXTERN_C()
 
 ZEND_API const char* ZEND_FASTCALL zend_get_opcode_name(zend_uchar opcode);
 ZEND_API uint32_t ZEND_FASTCALL zend_get_opcode_flags(zend_uchar opcode);
+ZEND_API zend_uchar zend_get_opcode_id(const char *name, size_t length);
 
 END_EXTERN_C()