How to catch unserialize exception?

Question

Is it possible to catch an exception on PHP when unserialize() generates an error?

Answer 1

No, you can't catch it, unserialize() does not throw Exception.

In case the passed string is not unserializeable, FALSE is returned and E_NOTICE is issued.

you can set a custom Exception handler to handle all errors:

function exception_error_handler($errno, $errstr, $errfile, $errline ) {     throw new ErrorException($errstr, $errno, 0, $errfile, $errline); } set_error_handler("exception_error_handler"); 

Answer 2

A simple way is:

$ret = @unserialize($foo); if($ret === null){    //Error case } 

But it isn't the most modern solution.

The best way is as mentioned before to have a custom error/exception handler (not only for this case). But depending of what you are doing it may be overkill.

Answer 3

Convert all PHP errors (warnings notices etc) to exceptions. Example is here.