3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array('one', 'two', 'three'); foreach ($a as &$b) { echo $b . PHP_EOL; } foreach ($a as $b) { echo $b . PHP_EOL; }
Output for 5.0.2 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
one two three one two two
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.0.0 - 5.0.1
Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/JNnAY on line 7 onePHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/JNnAY on line 7 twoPHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/JNnAY on line 7 threePHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/JNnAY on line 13 onePHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/JNnAY on line 13 twoPHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/JNnAY on line 13 twoPHP_EOL
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected '&', expecting T_VARIABLE or '$' in /in/JNnAY on line 6
Process exited with code 255.
Output for 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected '&', expecting T_VARIABLE or '$' in /in/JNnAY on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_VARIABLE' or `'$'' in /in/JNnAY on line 6
Process exited with code 255.
Output for 4.3.0
Parse error: parse error, unexpected '&', expecting T_VARIABLE or '$' in /in/eGt8g on line 6
Process exited with code 255.