MFB: fix #44214

ext/pcre/php_pcre.c

@@ -969,8 +969,8 @@ static int preg_do_repl_func(zval *function, char *subject, int *offsets, char *
 		result_len = offsets[1] - offsets[0];
 		*result = estrndup(&subject[offsets[0]], result_len);
 	}
-	zval_dtor(subpats);
-	FREE_ZVAL(subpats);
+
+	zval_ptr_dtor(&subpats);
 
 	return result_len;
 }

ext/pcre/tests/bug44214.phpt

@@ -0,0 +1,31 @@
+--TEST--
+Bug #44214 (crash with preg_replace_callback() and global variable)
+--FILE--
+<?php
+$string = 'aaa bbb ccc ddd eee ccc aaa bbb';
+
+$array = array();
+
+function myCallBack( $match ) {
+    global $array;
+    $array[] = $match;
+    return 'xxx';
+}
+
+var_dump(preg_replace_callback( '`a+`', 'myCallBack', $string));
+var_dump($array);
+?>
+--EXPECT--
+string(31) "xxx bbb ccc ddd eee ccc xxx bbb"
+array(2) {
+  [0]=>
+  array(1) {
+    [0]=>
+    string(3) "aaa"
+  }
+  [1]=>
+  array(1) {
+    [0]=>
+    string(3) "aaa"
+  }
+}

ext/pcre/tests/bug44214_2.phpt

@@ -0,0 +1,25 @@
+--TEST--
+Bug #44214-2 (crash with preg_replace_callback() and global variable)
+--FILE--
+<?php
+$string = 'aaa bbb ccc ddd eee ccc aaa bbb';
+
+$array = array();
+
+function myCallBack( $match ) {
+    global $array;
+    $array[] = $match[0];
+    return 'xxx';
+}
+
+var_dump(preg_replace_callback( '`a+`', 'myCallBack', $string));
+var_dump($array);
+?>
+--EXPECT--
+string(31) "xxx bbb ccc ddd eee ccc xxx bbb"
+array(2) {
+  [0]=>
+  string(3) "aaa"
+  [1]=>
+  string(3) "aaa"
+}