Passing variables through URL

pilot1

I'm trying to pass the $n2 variable to this PHP script by using http://www.domain.tld/file.php?n2=value, but it won't work.
My PHP script is below, can anyone tell me what I'm doing wrong?

<?php
$n1 = "2";
echo $n2;

if ( $n2 > $n1 ) {
echo "n2 greater than n1";
}
 else {
echo "else statement";

}
?>

sglane

Dependant on what version of PHP and what's in your php.ini, you can't directly access varialbes like that.

echo $n1;

should be:

echo $REQUEST["n1"];
or
echo $GET["n1"];
or
echo $_POST["n1"];

I like to use the REQUEST array b/c i change my form actions a lot and this array encompasses both the GET and _POST arrayas.

pilot1

I changed the "echo n2" command, but now it just adds the value of n1 before the text it echos

oprpg

<?php 
$n1 = "2"; 
$n2= $_GET[n2];
echo $n2; 

if ($n2 > $n1) { 
echo "n2 greater than n1"; 
} 
else { 
echo "else statement"; 
} 
?>

what version php do you have?

pilot1

PHP 4.3.3 (cli) (built: Aug 25 2003 14:02:02)
Copyright (c) 1997-2003 The PHP Group
Zend Engine v1.3.0, Copyright (c) 1998-2003 Zend Technologies

oprpg

this should work:

<?php  

$n1 = "2";  

$n2= $_GET[n2]; 
echo $n2;  

if ($n2 > $n1) {  

echo "n2 greater than n1";  

}  

else {  

echo "else statement";  

}  

?>