--TEST--
json_decode() function - a test to verify that json_decode() returns NULL on an invalid json string
--SKIPIF--
<?php if (!function_exists('json')) echo "SKIP"; ?>
--FILE--
<?php
/**
 * All values were verified to be invalid JSON on jsonlint.com.
 *
 * Therefor, json_encode() should return NULL on those values as noted in the documentation.
 *
 * @link http://bugs.php.net/bug.php?id=45989
 */
var_dump(json_decode("'invalid json'"));
var_dump(json_decode('invalid json'));
var_dump(json_decode(' {'));
var_dump(json_decode(' ['));
?>
--EXPECT--
NULL
NULL
NULL
NULL