3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $string = "C#maj7"; $qualityVal = ""; if (true) { $qualityVal += substr($string, 2); } echo $qualityVal; ?>
Output for 7.1.0 - 7.2.0
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 - 7.0.20
0