PHP: whats the total length of a post global variable?

Question

I was wondering if anybody knows the total length that a post global could be. e.g:

$_POST[\'formInput\'] = \"hello world, how long can i be?\";

Answer 1

Another problem can be the default limit in php.ini for directive max_input_vars (default 1000), not only the post_max_size. If you have e.g. a very large form with thousands of checkboxes the $_POST array will have only 1000 keys.