3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $chords = ['C', 'C#', 'D', 'D#', 'E', 'F', 'F#', 'G', 'G#', 'A', 'A#', 'B']; // Therefore, If the original chord is E and we want to transpose +1, the resulting chord is F. If we transpose +4, the resulting chord is G#. $index = array_search('E', $chords); // Transpose +4 to get the index of E, found above, +4 chords $chord = $chords[$index+4]; echo 'Chord: ' + $chord;
Output for 7.1.0 - 7.3.0rc4
Warning: A non-numeric value encountered in /in/JTeir on line 12 Warning: A non-numeric value encountered in /in/JTeir on line 12 0
Output for 5.5.0 - 7.0.20
0