short and simple - numbers and is_int()

[snoopy13]

hy
I should test if a variable sent by a form is just a number with no comma or point or so (integer??) but how??
i tried
if (!is_int($var)) echo "is not good";
but when I try and type a number (eg. 1) it sais: "is not good"...
any suggestions?

[paulnaj]

is_int($var) returns true if $var is an integer, not a string containing an integer.

You have $var coming from a form, so it is definitely a string, not an integer.

Try this ...

if(is_numeric($var){
    $var += 0; // This converts a numeric string to a number
    if(is_int($var){
        echo "Integer!";
    } else {
        echo "Not an integer!";
    }
} else {
    echo "Not an integer!";
}

[snoopy13]

thanks a lot, I'll try this!