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run code in 150+ php & hhvm versions
Bugs & Features
<?php $string = 'blah'; $string2 = explode(' ', $blah); var_dump($string2); ?>
Output for 5.0.4 - 5.6.28, hhvm-3.10.0, 7.0.0 - 7.1.0
Notice: Undefined variable: blah in /in/2YK5E on line 4 array(1) { [0]=> string(0) "" }
Output for hhvm-3.12.0
Notice: Undefined variable: blah in /in/2YK5E on line 4 Warning: explode() expects parameter 2 to be string, null given in /in/2YK5E on line 4 NULL
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: blah in /in/2YK5E on line 4 array(1) { [0]=> string(0) "" }