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<?php class abc { private static $main; private function __construct() { } public function ob($b) { return $b.__FUNCTION__."\n"; } public function __destruct() { echo __FUNCTION__, "\n"; } public static function enable() { echo __FUNCTION__, "\n"; self::$main = new self; register_shutdown_function(__CLASS__.'::shutdown'); } public static function shutdown() { echo __FUNCTION__, "\n"; register_shutdown_function(__CLASS__.'::tail'); } public static function tail() { echo __FUNCTION__, "\n"; ob_start(array(self::$main, 'ob')); } } abc::enable();
Output for 5.2.2 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
enable shutdown tail __destruct ob
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.1
enable __destruct
Output for 5.0.5
enable __destruct Warning: (Registered shutdown functions) Unable to call abc::shutdown() - function does not exist in Unknown on line 0
Output for 5.0.0 - 5.0.4
enable Warning: Unknown: Unable to call abc::shutdown() - function does not exist in Unknown on line 0 __destruct
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/JPTVu on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/JPTVu on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/JPTVu on line 5
Process exited with code 255.
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286.68 ms | 401 KiB | 456 Q