[Kwarde]

Alternative version of "IsNumeric"

pawn Код:

stock IsNumeric(string[])
{
    for(new i = 0, length = strlen(string), check; i < length; i++){
        switch(string[i]){
            case '0' .. '9': check ++;
        }
        if(check == length) return true;
    }
    return false;
}

How does it work:
It loops through the whole 'string' length. If string length 'i' (per character) is numeric, it increases 'check' with 1.
If 'check' is the same as the string length, it will return true.

It's easy :P