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run code in 150+ php & hhvm versions
Bugs & Features
<?php class hi { function __wakeup() { echo 'haha'; } function __destruct() { echo 'hi'; } } $str = '!'; session_start(); $_SESSION[$str] = '|O:2:"hi":0:{}'; var_dump($_SESSION);
Output for 5.2.3 - 5.6.28, 7.0.0 - 7.1.0
array(1) { ["!"]=> string(14) "|O:2:"hi":0:{}" }
Output for hhvm-3.10.0 - 3.12.0
array(1) { ["!"]=> string(14) "|O:2:"hi":0:{}" } Warning: Failed to write session data (files). Please verify that the current setting of session.save_path is correct ()
Output for 4.3.2 - 5.2.2
Warning: session_start(): Cannot send session cookie - headers already sent in /in/L7cIL on line 12 Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /in/L7cIL:12) in /in/L7cIL on line 12 array(1) { ["!"]=> string(14) "|O:2:"hi":0:{}" }
Output for 4.3.0 - 4.3.1
Warning: session_start() [http://www.php.net/function.session-start]: Cannot send session cookie - headers already sent in /in/L7cIL on line 12 Warning: session_start() [http://www.php.net/function.session-start]: Cannot send session cache limiter - headers already sent (output started at /in/L7cIL:12) in /in/L7cIL on line 12 array(1) { ["!"]=> string(14) "|O:2:"hi":0:{}" }