3v4l.org

run code in 300+ PHP versions simultaneously
<?php $angry = 😡; $happy = 😀; echo happy + sad;
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Uncaught Error: Undefined constant "😡" in /in/oKlMI:3 Stack trace: #0 {main} thrown in /in/oKlMI on line 3
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33
Warning: Use of undefined constant 😡 - assumed '😡' (this will throw an Error in a future version of PHP) in /in/oKlMI on line 3 Warning: Use of undefined constant 😀 - assumed '😀' (this will throw an Error in a future version of PHP) in /in/oKlMI on line 4 Warning: Use of undefined constant happy - assumed 'happy' (this will throw an Error in a future version of PHP) in /in/oKlMI on line 6 Warning: Use of undefined constant sad - assumed 'sad' (this will throw an Error in a future version of PHP) in /in/oKlMI on line 6 Warning: A non-numeric value encountered in /in/oKlMI on line 6 Warning: A non-numeric value encountered in /in/oKlMI on line 6 0
Output for 7.1.0 - 7.1.20
Notice: Use of undefined constant 😡 - assumed '😡' in /in/oKlMI on line 3 Notice: Use of undefined constant 😀 - assumed '😀' in /in/oKlMI on line 4 Notice: Use of undefined constant happy - assumed 'happy' in /in/oKlMI on line 6 Notice: Use of undefined constant sad - assumed 'sad' in /in/oKlMI on line 6 Warning: A non-numeric value encountered in /in/oKlMI on line 6 Warning: A non-numeric value encountered in /in/oKlMI on line 6 0
Output for 7.0.0 - 7.0.20
Notice: Use of undefined constant 😡 - assumed '😡' in /in/oKlMI on line 3 Notice: Use of undefined constant 😀 - assumed '😀' in /in/oKlMI on line 4 Notice: Use of undefined constant happy - assumed 'happy' in /in/oKlMI on line 6 Notice: Use of undefined constant sad - assumed 'sad' in /in/oKlMI on line 6 0

preferences:
186.08 ms | 402 KiB | 169 Q