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run code in 200+ php & hhvm versions
Bugs & Features
<?php $array = [ 'false' => false, 'null' => null, 'zero' => 0, 'empty' => '', ]; var_dump(isset($array['false'])); var_dump(isset($array['null'])); var_dump(isset($array['zero'])); var_dump(isset($array['empty']));
Output for 5.4.0 - 5.6.30, hhvm-3.10.1 - 3.17.3, 7.0.0 - 7.2.6
bool(true) bool(false) bool(true) bool(true)
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/ldrdh on line 3
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/ldrdh on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/ldrdh on line 3
Process exited with code 255.