integer

[Uatec]

I have a form input that is going into a mysql DB. Is there a function that I could use to check that the contents of the variable is an integer?

Cheers.

Rob - Wellington College

[Dan615]

if (intval($variable)) {
// blah blah blah;
}


Something like that...it can't be plain is_int because form data is automatically a string, I think...i could be wrong

[kippesp]

You'll get a false negative if the string is '0'.

To resolve that, change intval() to is_numeric(). PHP 4 required.

[rylin]

or just use regular typecasting
(int)$variable