[SOLVED] no number in verable, error message output

[crawlerbasher]

Well I'm kind of lost on this one.

I've been looking all over to try and find a way to remove all cracters accept numbers from a verable.

 

And I'm kind of new, when it comes to removing certain caracters from the verable.

 

an eg would be

 

$id = 00289 // Good verable

$id = ".Some hacking going on." // Bad Verable

 

So since I only need numbers to past though the verable, any idea of the best way to solve this?

[Lumio]

If you only want to check if it's a number, use is_numeric

<?php
$var = 1;
if (is_numeric($var)) echo 'is number';
else echo 'is not a number';

$var = 'hello world';
if (is_numeric($var)) echo 'is number';
else echo 'is not a number';
?>

 

If you only want to accept a number use intval that converts strings into numbers:

<?php
$var = 'hello';
$var = intval($var); //becomes 0

$var = '23';
$var = intval($var); //becomes 23
?>

[crawlerbasher]

I'll give that a go, I was messing around with that earlyer and could not get it to work, I wounder if the format of the coding is the same.

 

 

[Lumio]

Can you show some of your code?

[crawlerbasher]

Well this is my code and still not working.

 

<?php
include("../header.php");
$id = $_GET['id'];
if (is_numeric($id)) {
echo "<p align=\"center\">\n";
echo "<img src=\"http://www.stateofmind.me.uk/images/cineworld/starwars/DSC".$id.".jpg\" alt=\"DSC".$id."\" border=\"0\" />\n";
echo "<br />\n";
echo $id;
echo "<br /><br />\n";
echo "<a href=\"/cineworld/startwars.php\">Back</a>\n";
echo "</p>";
} else {
echo "That is not a numeric value\n";
}
include("../footer.php");
?>

 

with number string and caracters it still outpost as that is not a numeric value.

[Lumio]

do you get any error messages... if so, please give us those errors. Otherwise we can't really help you.

It works for me.

[crawlerbasher]

The only error message are from the include function which is because for that pertiacal header and footer, are not on the site, I'm just testing the main code it self.

 

Which gives these message:

 

$id = 00127 // output is: That is not a numeric value

$id = test // output is: That is not a numeric value

[Lumio]

comment the includings out.. I mean:

//include(...)

[crawlerbasher]

I have its just the same kind of custom error message of That is not a numeric value with both numric and alpha caracters.

 

But part from that there is no error in the phrashing of the code.

[Lumio]

So it is working?

[crawlerbasher]

lol it is now, it was a simple typeo in the url that was corsing the probble 

 

And thank you for help me get though this.

[Lumio]

ok... please click on TOPIC SOLVED