3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a=['length'] = 3; $length = (int) isset($a['length']) ? $a['length'] : -1; echo $length;
Output for 8.5.0 - 8.5.3
Fatal error: Assignments can only happen to writable values in /in/mbcBL on line 2 Stack trace: #0 {main}
Process exited with code 255.
Output for 8.3.0 - 8.3.30, 8.4.1 - 8.4.18
Fatal error: Assignments can only happen to writable values in /in/mbcBL on line 2
Process exited with code 255.
preferences:
170.69 ms | 1018 KiB | 8 Q