[How to] set different memory_limit value only in a file

Hi guys,

in WHM >> PHP Configuration Editor (php.ini) >> the memory_limit are set to 30M, so the server no need too high resource, and to prevent poorly written scripts for eating up all available memory on a server

I want a file only, lets say some.php, that already trusted of course, get higher memory_limit more than set in php.ini

is there any way to do that?

ini_set("memory_limit",?M);