PHP How to find maximum allowed POST data?

In PHP, is there a quick way to find th开发者_Python百科e maximum allowed size of POST data for any server configuration that my script is run on?

For example, $max_post_length = $_SERVER['maxpost']; or something. Perhaps it would return 0 for 'no limit'...any ideas?

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Use ini_get.

ini_get('post_max_size');

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Try this:

echo ini_get('post_max_size');

Or translate it to bytes:

echo (int)(str_replace('M', '', ini_get('post_max_size')) * 1024 * 1024);