Need to remove an element from array

[orion_rus]

I have array
1,2,3,...20
And i need to simply remove element 3 from it,
how i can do it? i know how to make it with splice or slice. But may be anybody knows another way?
Thanks for help

[Zipper]

unset($a[2]);

[mincklerstraat]

if you're inside a function and it's a global value, then try

unset($GLOBALS['a'][2]);

in order to unset $a[2].

[orion_rus]

Thank you very much)