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run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump( (strtolower($x) == "true") );
Output for 5.0.4 - 7.1.7
Notice: Undefined variable: x in /in/ptei1 on line 4 bool(false)
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: x in /in/ptei1 on line 4 bool(false)