3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array(1, 2, 3); doFoo($arr); echo &$foo; function doFoo($array) { foreach ($array as &$foo) { // ... } }
Output for 5.3.0 - 5.3.28, 5.4.0 - 5.4.23, 5.5.0 - 5.5.7
Parse error: syntax error, unexpected '&' in /in/SIXCe on line 4
Process exited with code 255.

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