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<?php $str = '[ ["key1", "value1"], ["key2", "value2"], ["key3", "value3"] ]'; preg_match_all('/(\[("(.*?)"), ("(.*?)")\])+/i', $str, $matches); //Now we have in $matches[3] and $matches[5] the keys and the values //and we would now turn this into an array using a loop $new_array = array(); foreach($matches[3] as $k => $arr) { $new_array[$arr] = $matches[5][$k]; } var_dump($new_array);

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