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run code in 200+ php & hhvm versions
Bugs & Features
<?php $arr = array(1, 2, 3); foreach ( $arr as & $value ) { $value = $value * 2 ; } var_dump($arr); foreach($arr as $value) { echo $value; //2 4 4 }
based on 1vSMf
Output for 5.2.1 - 7.2.0
array(3) { [0]=> int(2) [1]=> int(4) [2]=> &int(6) } 244
Output for 5.0.0 - 5.2.0
array(3) { [0]=> &int(2) [1]=> &int(4) [2]=> &int(6) } 244
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected '&', expecting T_VARIABLE or '$' in /in/b0lXs on line 4
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 '$' in /in/b0lXs on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_VARIABLE' or `'$'' in /in/b0lXs on line 4
Process exited with code 255.