3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = "C#maj7"; $qualityVal = ""; if (true) { $qualityVal += substr($string, 2); } echo $qualityVal; ?>
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 TypeError: Unsupported operand types: string + string in /in/u8LEj:5 Stack trace: #0 {main} thrown in /in/u8LEj on line 5
Process exited with code 255.
Output for 7.1.0 - 7.1.25, 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/u8LEj on line 5 Warning: A non-numeric value encountered in /in/u8LEj on line 5 0
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 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, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33
0

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298.62 ms | 403 KiB | 420 Q