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run code in 200+ php & hhvm versions
Bugs & Features
<?php $chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'; $len = strlen($chars); for ($i = 0; $i < $len; $i++) { echo substr($chars,$i,1); }
Output for 4.3.0 - 7.1.7
ABCDEFGHIJKLMNOPQRSTUVWXYZ