<?php
print grapheme_strlen("é"); // LATIN SMALL LETTER E WITH ACUTE
print "\n";
print grapheme_strlen("é"); // LATIN SMALL LETTER E; COMBINING ACUTE ACCENT
Fatal error: Uncaught Error: Call to undefined function grapheme_strlen() in /in/HPOb3:2
Stack trace:
#0 {main}
thrown in /in/HPOb3 on line 2
Process exited with code 255.