1--TEST--
2Test preg_match() function : variation
3--FILE--
4<?php
5/* Function is implemented in ext/pcre/php_pcre.c */
6
7//test passing in the same variable where 1 is by value, the other is a different
8//type and by reference so should be updated to the new type.
9$string = "-1";
10preg_match('/[\-\+]?[0-9\.]*/', $string, $string);
11var_dump($string);
12?>
13--EXPECT--
14array(1) {
15  [0]=>
16  string(2) "-1"
17}
18