3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $spell = array("double", "toil", "trouble", "cauldron", "bubble"); foreach ($spell as &$word) { $word = ucfirst($word); } var_dump($spell); foreach ($spell as $words) { echo join(" ", $spell) . "\n"; }
Output for 5.2.1 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(5) { [0]=> string(6) "Double" [1]=> string(4) "Toil" [2]=> string(7) "Trouble" [3]=> string(8) "Cauldron" [4]=> &string(6) "Bubble" } Double Toil Trouble Cauldron Bubble Double Toil Trouble Cauldron Bubble Double Toil Trouble Cauldron Bubble Double Toil Trouble Cauldron Bubble Double Toil Trouble Cauldron Bubble
Output for 5.0.0 - 5.2.0
array(5) { [0]=> &string(6) "Double" [1]=> &string(4) "Toil" [2]=> &string(7) "Trouble" [3]=> &string(8) "Cauldron" [4]=> &string(6) "Bubble" } Double Toil Trouble Cauldron Bubble Double Toil Trouble Cauldron Bubble Double Toil Trouble Cauldron Bubble Double Toil Trouble Cauldron Bubble Double Toil Trouble Cauldron Bubble
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected '&', expecting T_VARIABLE or '$' in /in/ftKdS on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected '&', expecting T_VARIABLE or '$' in /in/ftKdS on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_VARIABLE' or `'$'' in /in/ftKdS on line 3
Process exited with code 255.