3v4l.org

run code in 500+ PHP versions simultaneously
<?php $h = "Hello "; $w = "world"; echo $h + $w;
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.32, 8.3.0 - 8.3.32, 8.4.1 - 8.4.23, 8.5.0 - 8.5.9
Fatal error: Uncaught TypeError: Unsupported operand types: string + string in /in/Q2Xk9:4 Stack trace: #0 {main} thrown in /in/Q2Xk9 on line 4
Process exited with code 255.
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: A non-numeric value encountered in /in/Q2Xk9 on line 4 Warning: A non-numeric value encountered in /in/Q2Xk9 on line 4 0
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33
0

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99.79 ms | 2146 KiB | 4 Q