3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $arr = array(1, 2, 3); doFoo($arr); echo $foo; function doFoo($array) { foreach ($array as &$foo) { // ... } }
Output for 5.5.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Notice: Undefined variable: foo in /in/22WbP on line 4
Output for 5.0.0 - 5.4.45
Output for 4.4.2 - 4.4.9
<br /> <b>Parse error</b>: syntax error, unexpected '&', expecting T_VARIABLE or '$' in <b>/in/22WbP</b> on line <b>8</b><br />
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
<br /> <b>Parse error</b>: parse error, unexpected '&', expecting T_VARIABLE or '$' in <b>/in/22WbP</b> on line <b>8</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.3.4
<br /> <b>Parse error</b>: parse error, expecting `T_VARIABLE' or `'$'' in <b>/in/22WbP</b> on line <b>8</b><br />
Process exited with code 255.