- var_dump: documentation ( source)
- json_decode: documentation ( source)
- array_merge_recursive: documentation ( source)
<?php
$array = json_decode('[{"pattern": "firefox","isPatternRegExp": false},{"pattern": "chrome","isPatternRegExp": false}]', true);
var_dump($array);exit;
var_dump(array_merge_recursive($array, $array));