3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = 'a' + 'b'; echo $x + 'c'; echo PHP_EOL; echo '1' + '2';
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught TypeError: Unsupported operand types: string + string in /in/onsfK:3 Stack trace: #0 {main} thrown in /in/onsfK on line 3
Process exited with code 255.
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33
Warning: A non-numeric value encountered in /in/onsfK on line 3 Warning: A non-numeric value encountered in /in/onsfK on line 3 Warning: A non-numeric value encountered in /in/onsfK on line 5 0 3
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, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20
0 3
Output for 4.3.0 - 4.3.9, 5.0.0 - 5.0.1
0 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/onsfK on line 7 PHP_EOL3

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204.74 ms | 402 KiB | 312 Q