3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(E_NONE); $a = "2d9"; $a++; $a++; echo $a; // 2 // 2d11 //*3 // 4 // 4d9 // r2d2 echo "\n"; $a = "0"; $b = 0; $c = NULL; if ($a == $b && $b == $c) { echo $a == $c ? 'true' : 'false'; } else { echo 'none'; } // true //*false // none // 42
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Fatal error: Uncaught Error: Undefined constant "E_NONE" in /in/3PU8L:2 Stack trace: #0 {main} thrown in /in/3PU8L on line 2
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: Use of undefined constant E_NONE - assumed 'E_NONE' (this will throw an Error in a future version of PHP) in /in/3PU8L on line 2 3 false
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.1 - 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 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33
Notice: Use of undefined constant E_NONE - assumed 'E_NONE' in /in/3PU8L on line 2 3 false
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/3PU8L on line 28
Process exited with code 255.
preferences:
289.71 ms | 401 KiB | 461 Q