3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $foo = [ 'en' => '', 'fr' => 'fr' ]; $bar = [ 'de' => 'de' ]; $bar[] = $foo['en']; var_dump(array_count_values($foo)); $bar[] = &$foo['fr']; var_dump(array_count_values($foo));
based on BA0G2
Output for 5.4.0 - 7.2.0
array(2) { [""]=> int(1) ["fr"]=> int(1) } array(2) { [""]=> int(1) ["fr"]=> int(1) }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/mV25H on line 2
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/mV25H on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/mV25H on line 2
Process exited with code 255.