3v4l.org

run code in 300+ PHP versions simultaneously
<?php class myClass implements Serializable { public serialize() { throw new Exception('Serialization of \'myClass\' is not allowed.'); } public unserialize() { } } $myClass = new myClass; var_dump(serialize($myClass));
Output for 5.4.0 - 5.4.30
Parse error: syntax error, unexpected 'serialize' (T_STRING), expecting variable (T_VARIABLE) in /in/1V9EB on line 4
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_STRING, expecting T_VARIABLE in /in/1V9EB on line 4
Process exited with code 255.
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184.31 ms | 1395 KiB | 67 Q