serialize a large array in PHP?

Question

I am curious, is there a size limit on serialize in PHP. Would it be possible to serialize an array with 5,000 keys and values so it can be stored into a cache?

I am

Answer 1

Nope, there is no limit and this:

set_time_limit(0);
ini_set('memory_limit ', -1);

unserialize('s:2000000000:"a";');

is why you should have safe.mode = On or a extension like Suhosin installed, otherwise it will eat up all the memory in your system.