3v4l.org

run code in 300+ PHP versions simultaneously
<?php $c='{"ContentBlock1":["2","22"],"ContentBlock2":["1","11"]}'; $cid = json_decode($c); foreach ($cid as $key){ $jsoncid[] = $key; } //print_r($jsoncid); echo implode(',',$jsoncid);

preferences:
50.45 ms | 402 KiB | 5 Q