3v4l.org

run code in 300+ PHP versions simultaneously
<?php class foo { public static $r = [1,2,3]; public static function run($r = foo::$r) { return $r; } } var_dump(foo::run());
Output for 5.4.0 - 5.4.24
Parse error: syntax error, unexpected '$r' (T_VARIABLE), expecting identifier (T_STRING) in /in/qqBFi on line 6
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected '[' in /in/qqBFi on line 5
Process exited with code 255.
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189.48 ms | 1395 KiB | 61 Q