3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function func(array &$a){ $a[0]=10; } $a=[1, 2, 3, 4]; var_dump($a); func($a); var_dump($a);
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(4) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(4) } array(4) { [0]=> int(10) [1]=> int(2) [2]=> int(3) [3]=> int(4) }
Output for 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/guYid on line 7
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_ARRAY, expecting '&' or T_VARIABLE in /in/guYid on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_ARRAY, expecting ')' in /in/guYid 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 T_ARRAY, expecting ')' in /in/guYid on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/guYid on line 3
Process exited with code 255.