escapeshellcmd escapeshellarg

php

Which do I have to use
between
escapeshellcmd and
escapeshellarg ?

Imagine a giant penis flying towards your mouth, and there's nothing you can do about it. And you're like, "Oh man, I'm gonna have to hack this thing." And you brace yourself to hack this giant penis. But then, at the last moment, you M-: (REDIRECT-PENIS). You think to yourself, "Well, at least I got that out of the way." That's when the giant penis slaps you across the cheek, causing you to fall out of your chair. Trapped under your fallen chair with your rear exposed, the giant penis finally slides itself into your anus, where it rests uncomfortably. Gradually you become aware that your power level is growing, and after exactly four hours you realize that it is never leaving you. You summon the will to return to your Emacs session, finding the spirits of the computer are more responsive to your spells than you imagined possible. That's what using Emacs is.