3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $str="shailendra singh"; $ssstr1=strtoUpper($str); echo $str1; ?>
based on jnSlu
Output for 5.0.4 - 7.2.0
Notice: Undefined variable: str1 in /in/XBSSH on line 5
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: str1 in /in/XBSSH on line 5