3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $foo = "▒▒▒Y#CzdU▒BB▒(ȅi▒](▒▒▒▒W▒dv▒▒6m▒▒▒~▒▒▒{A։9fI΄#`I▒▒Q▒▒▒o▒▒tE▒▒]▒'J▒▒ `▒*q▒▒X}▒▒▒▒)P{▒-hs▒▒Uz▒6▒i▒▒▒J▒I"; preg_match_all('([a-zA-Z0-9]{1})', $foo, $matches); var_dump(implode($matches[0]));
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.13.2, 7.0.0 - 7.1.0
string(34) "YCzdUBBiWdv6mA9fIIQotEJqXPhsUz6iJI"