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run code in 200+ php & hhvm versions
Bugs & Features
<?php class Foo { const BAR = ['baz' => 'qux']; function quux() { var_dump(isset(self::BAR['foo'])); } } $f = new Foo(); $f->quux();
Output for 7.0.0 - 7.2.0
bool(false)
Output for 5.6.8 - 5.6.28
Fatal error: Cannot use isset() on the result of an expression (you can use "null !== expression" instead) in /in/lSjP6 on line 7
Process exited with code 255.
Output for 5.4.12 - 5.5.35
Fatal error: Arrays are not allowed in class constants in /in/lSjP6 on line 4
Process exited with code 255.
Output for 5.3.22 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/lSjP6 on line 4
Process exited with code 255.