3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array('one', 'two', 'three'); foreach ($a as &$b) { echo $b . PHP_EOL; } echo PHP_EOL; foreach ($a as $b) { echo $b . PHP_EOL; }
Output for 5.0.2 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
one two three one two two
Output for 5.0.0 - 5.0.1
onePHP_EOLtwoPHP_EOLthreePHP_EOLPHP_EOLonePHP_EOLtwoPHP_EOLtwoPHP_EOL
Output for 4.4.2 - 4.4.9
<br /> <b>Parse error</b>: syntax error, unexpected '&', expecting T_VARIABLE or '$' in <b>/in/QEFT0</b> on line <b>6</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 '$' in <b>/in/QEFT0</b> on line <b>6</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.3.4
<br /> <b>Parse error</b>: parse error, expecting `T_VARIABLE' or `'$'' in <b>/in/QEFT0</b> on line <b>6</b><br />
Process exited with code 255.