[RESOLVED] preg_match problem

kingdm

Merry Christmas to everyone.

I have a problem regarding my error validation in a form. I want to validate the input to be purely number only. ( 0 - 9 ). I want to detect the special characters.

if(!preg_match("/[^a-zA-Z]/",$variable))

This is my preg_match but it only detects alphabet, what will be my addition in this preg_match to detect all special characters, including the characters in shift+number.

Thanks.

Weedpacket

[man]ctype_digit[/man]

kingdm

Thanks for the reply.

By reading the link you gave me, can I have this syntax:

if(!ctype_digit($variable))
{
 code here;
}
else
{
 code here;
}

halojoy

yes, you can quite right

because this function returns either TRUE or FALSE
http://www.php.net/ctype_digit

Return Values

Returns TRUE if every character in the string text is a decimal digit, FALSE otherwise.

kingdm

Thanks a lot buddy for your reply.

Now I figured it out. Thanks for clarifying my idea.