3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = array('a'=>'aaa','b'=>'bbb'); foreach($a as $key){echo a[$key];}
Output for 7.2.0
Warning: Use of undefined constant a - assumed 'a' (this will throw an Error in a future version of PHP) in /in/fQWT2 on line 4 Warning: Illegal string offset 'aaa' in /in/fQWT2 on line 4 a Warning: Use of undefined constant a - assumed 'a' (this will throw an Error in a future version of PHP) in /in/fQWT2 on line 4 Warning: Illegal string offset 'bbb' in /in/fQWT2 on line 4 a
Output for 5.6.0 - 7.1.7
Notice: Use of undefined constant a - assumed 'a' in /in/fQWT2 on line 4 Warning: Illegal string offset 'aaa' in /in/fQWT2 on line 4 a Notice: Use of undefined constant a - assumed 'a' in /in/fQWT2 on line 4 Warning: Illegal string offset 'bbb' in /in/fQWT2 on line 4 a
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.5.36
Parse error: syntax error, unexpected '[', expecting ',' or ';' in /in/fQWT2 on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[', expecting ',' or ';' in /in/fQWT2 on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `','' or `';'' in /in/fQWT2 on line 4
Process exited with code 255.