- parse_str: documentation ( source)
- array_merge_recursive: documentation ( source)
- print_r: documentation ( source)
<?php
$wtf = array();
$a = parse_str("elements[55][e_id]=1", $tmp_save1);
$wtf = array_merge_recursive($wtf, $tmp_save1);
$b = parse_str("elements[55][wtf]=2", $tmp_save2);
$wtf = array_merge_recursive($wtf, $tmp_save2);
print_r($wtf);