native ArrayInsertStringBefore(Array:which, item, const input);
Item index in the array
String to copy to the array
Creates a new item in front of the specified item and copies the provided
string into it. All items beyond it get shifted up by one.
The input will be truncated if it is longer than the cellsize the array
was created with.
This function has no return value.
If an invalid handle or an invalid index is provided an
error will be thrown.