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run code in 150+ php & hhvm versions
Bugs & Features
<?php function &z(&$a) { $a[0]=1; return $a; } $a = [ 'a', 'b', 'c' ]; foreach(z($a) as &$x) { $x .= 'q'; } print_r($a);
Output for 5.5.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Array ( [0] => 1q [1] => bq [2] => cq )
Output for 5.4.0 - 5.4.45
Fatal error: Cannot create references to elements of a temporary array expression in /in/TAEgt on line 11
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/TAEgt on line 10
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/TAEgt on line 10
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/TAEgt on line 10
Process exited with code 255.