3v4l.org

run code in 300+ PHP versions simultaneously
<?php $ip = '192.168.0.1'; $octets = explode('.', $ip); foreach($octets as $key => $octet) { $v = 255 - (int)$octet; $v + 255 == 255 ? $valid = true : $valid = false; if ($valid) echo 'valid'; else echo 'invalid'; echo PHP_EOL; } var_dump($octets);
Output for 4.3.10 - 4.3.11, 4.4.0 - 4.4.9, 5.0.2 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
invalid invalid invalid invalid array(4) { [0]=> string(3) "192" [1]=> string(3) "168" [2]=> string(1) "0" [3]=> string(1) "1" }
Output for 4.3.0 - 4.3.9, 5.0.0 - 5.0.1
invalid Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/8tr3r on line 16 PHP_EOLinvalid Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/8tr3r on line 16 PHP_EOLinvalid Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/8tr3r on line 16 PHP_EOLinvalid Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/8tr3r on line 16 PHP_EOLarray(4) { [0]=> string(3) "192" [1]=> string(3) "168" [2]=> string(1) "0" [3]=> string(1) "1" }
preferences:
238.29 ms | 403 KiB | 356 Q