ginginca
Nov 20 2006, 12:16 AM
I put together this: CODE
//Make Sure $qty is NOT blank before checking if it is a number
if (!empty($item_1_qty)) {
//not empty
}
if (intval($item_1_qty) !== $item_1_qty){
//item 1 qty is not a whole number
$redirect_to = 'order_form.php?error=6';
header("Location: $redirect_to");
exit();
}
But I get my error message coming no matter whether it is an integer or not.
Reply
jlhaslip
Nov 20 2006, 02:55 AM
QUOTE if (intval($item_1_qty) !== $item_1_qty){ Where is the value for the $item_1_qty coming from? if it is coming from a form, it may be cast as a string and the php.net site lists a series of examples which you might be interested in reviewing. http://us3.php.net/manual/en/function.intval.php
Reply
TavoxPeru
Nov 20 2006, 10:08 AM
QUOTE(ginginca @ Nov 19 2006, 07:16 PM)  I put together this: CODE
//Make Sure $qty is NOT blank before checking if it is a number
if (!empty($item_1_qty)) {
//not empty
}
if (intval($item_1_qty) !== $item_1_qty){
//item 1 qty is not a whole number
$redirect_to = 'order_form.php?error=6';
header("Location: $redirect_to");
exit();
}
But I get my error message coming no matter whether it is an integer or not. If your variable is coming from a form i reccomend you to cast it before you use it, its simple: CODE $item_1_qty = (int) $_POST['item_1_qty'];
Also take a look to the is_numeric() php function, because it is recommended to use it with variables that are submited by a form. Best regards,
Reply
Hercco
Nov 23 2006, 05:52 PM
PHP has a function called is_int() to test if parameter is integer. Why not just use that?
Reply
Quatrux
Nov 23 2006, 06:54 PM
..and why not better to use a function is_numeric() to see if the variable is a number or a numeric string, or you really need it to be integer.. But if so, the above replies have said enough. 
Reply
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