3v4l.org

run code in 300+ PHP versions simultaneously
<?php $ip = trim('88.99.241.121'); $arr = explode(".", $ip); foreach($arr as $p) { $arrBin[] = str_pad(decbin($p), 8, '0', STR_PAD_LEFT); } $arrBin6 = [ $arrBin[0] . $arrBin[1], $arrBin[2] . $arrBin[3] ]; foreach($arrBin6 as $p6) { $arr6[] = dechex(bindec($p6)); } print_r($arr); print_r($arrBin); print_r($arrBin6); print_r($arr6);

preferences:
28.06 ms | 402 KiB | 5 Q