3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = '0x123'; if (!is_numeric($str)) { throw new Exception('Not a number'); } // Exception not thrown, instead wrong result is generated here: $n = (int) $str; // 0
Output for 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
Fatal error: Uncaught Exception: Not a number in /in/fW3i3:5 Stack trace: #0 {main} thrown in /in/fW3i3 on line 5
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28
preferences:
206.35 ms | 402 KiB | 228 Q