3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo '<form enctype="multipart/form-data" action="ping.php" method="post"> <p>Podpis:</p><input class="imie" name="strona" type="text" maxlength="30" SIZE="30"><br> <br><br><input type="submit" class="button2" value="pinguj">'; function ping($host) { $tB = microtime(true); $fP = fSockOpen($host, 80, $errno, $errstr, 10); if (!$fP) { return "down"; } $tA = microtime(true); return round((($tA - $tB) * 1000), 0)." ms"; } if( isset($_POST['strona']) ){ for($x=1;$x<=10;$x++) { echo ping("$_POST[strona]")."<br>"; } } ?>

preferences:
27.99 ms | 402 KiB | 5 Q