What does at sign before eval() in php means?

Question

I've obfuscated a simple PHP 'hello world' program. The result is this :-

$e5b592e3="\x62\x61\x73\145\x36\64\137\144\x65\143\157\144\145";@eval($e5b592e3("Ly9oOWsxZGZrZzhpaTRJSzcxd2pIL3FhSkxJZERJM2ovZHpZZ2NmNTMwSXJKVk

(I've shown only relevant part of the code.)

Answer 1

In PHP, @ before a function is used to suppress any warnings or errors it may throw.