Merge branch 'PHP-5.6'

ext/opcache/Optimizer/zend_optimizer.c

@@ -250,6 +250,7 @@ void zend_optimizer_update_op2_const(zend_op_array *op_array,
 			case ZEND_ISSET_ISEMPTY_DIM_OBJ:
 			case ZEND_ADD_ARRAY_ELEMENT:
 			case ZEND_INIT_ARRAY:
+			case ZEND_ASSIGN_DIM:
 			case ZEND_UNSET_DIM:
 			case ZEND_FETCH_DIM_R:
 			case ZEND_FETCH_DIM_W:

ext/opcache/tests/bug69125.phpt

@@ -0,0 +1,22 @@
+--TEST--
+Bug #69125 (Array numeric string as key)
+--INI--
+opcache.enable=1
+opcache.enable_cli=1
+--SKIPIF--
+<?php require_once('skipif.inc'); ?>
+--FILE--
+<?php
+
+const SZERO = '0';
+const SONE = '1';
+
+$array[SZERO] = "okey";
+$array[1] = "okey";
+
+var_dump($array[SZERO]);
+var_dump($array[SONE]);
+?>
+--EXPECT--
+string(4) "okey"
+string(4) "okey"