Best way to detect if players entered text is only digits?

Best way to detect if players entered text is only digits? - Printable Version

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+--- Thread: Best way to detect if players entered text is only digits? (/showthread.php?tid=613884)

Best way to detect if players entered text is only digits? - Type-R - 01.08.2016

Hello, well i am making a banking system and i want to make it so, that you have to create an account with a 4-digit pin code. I tried googling and searching around the website, but i could not find what is the best way to detect players input text if it only contains digits?? Thank you.

Re: Best way to detect if players entered text is only digits? - PrO.GameR - 01.08.2016

Search for isnumeric function..

PS: most of includes do use that, so just give it a try, I'm pretty sure if you are using sscanf it does have that.

Re: Best way to detect if players entered text is only digits? - Shinja - 01.08.2016

PHP код:



stock isNumeric(string[])

{

    for (new i = 0, j = strlen(string); i < j; i++)

    {

        if (string[i] > '9' || string[i] < '0') return 0;

    }

    return 1;

}

Re: Best way to detect if players entered text is only digits? - Misiur - 01.08.2016

If you are using sscanf, then it's just

pawn Код:

if(sscanf(yourstring, "{dddd}")) //fail

Otherwise, something like

pawn Код:

for (new i = 0; i != MAX_PIN_DIGITS; ++i) if(!('0' <= input[i] <= '9')) //fail

//Beaten by fast typers

Re: Best way to detect if players entered text is only digits? - Vince - 01.08.2016

Quote:

Originally Posted by Misiur

If you are using sscanf, then it's just

pawn Код:

if(sscanf(yourstring, "{dddd}")) //fail

That won't work because those numbers then need to be separated by spaces and in addition can be longer than one character.

Re: Best way to detect if players entered text is only digits? - Stinged - 01.08.2016

This would work, if you're using sscanf

Код:

if (sscanf(string, "{i}")) // string is not all numbers

Re: Best way to detect if players entered text is only digits? - Luicy. - 01.08.2016

What about strval?

PHP код:



if(strval(string)))

Re: Best way to detect if players entered text is only digits? - Stinged - 01.08.2016

Quote:

Originally Posted by Meller

What about strval?

PHP код:



if(strval(string)))

Wouldn't work. It returns 0 when the string is not a number.
But it also returns 0 when the integer is equal to zero.
That would deny '0000' as a 4 digit pin code.

Re: Best way to detect if players entered text is only digits? - NaS - 02.08.2016

PHP код:



IsPinCode(input[])

{

    new len = strlen(input);


    if(len != 4) return 0;


    for(new i = 0; i < len; i ++) if(input[i] < '0' || input[i] > '9') return 0;


    return 1;

}