New to PHP

bohnishikha

Hi,
I have started PHP for last 2 days..When I want to retrieve variable on the next page what I have posted as querystring from prev page ,I am not getting the output:
Input:welcome<?php
loginname=trim($_REQUEST['name']) ;
echo $loginname;
?>
wht's wrong with it..

wilku

this is yourscript.php:

welcome <?php
$loginname=trim($_REQUEST['name']) ; //you forgot $ at the beginning
echo $loginname;
?>

This will work if you access it with yourscript.php?name=some_name
Or you've got a form someplace else:

<form action="yourscript.php" method="post">
Your login name: <input type="text" name="name" value="">
<input type="submit" value="Send" name="submitted">
</form>

Make sure you've got error_reporting set to E_ALL when you're learning, because it shows Notices as well (not a default behaviour).

Piranha

I think that it is best if you learn not to use $REQUEST from the start, then you don't have to get in trouble with it later. You should use $GET and $_POST instead.

If the URL is "http://www.something.com/indes.php?test=kalle" then you should get it the following way:

<?php
$test = $_GET['test'];
echo $test;
?>

Using $_GET catches the variable from the URL.

The other way is forms that don't show the result in the URL but have the method post. The form looks something like this:

<form action="form2.php" method="post">
Name: <input type="text" name="name" />
<input type="submit" />
</form>

form2.php is the page that gets the value:

<?php
$test = $_POST['name'];
echo $name;
?>

Using $_POST catch the variable that is not in the URL.

The problem with using $_REQUEST is if you have the same variable name in both the URL and in a post-variable. To avoid the problem it is always better to do it the right way to start with.