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[SOLVED] Seemingly simple code not working?


zerbon

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I made this simple example below that I thought should work; I'm not sure what I am missing?

 

Unless I am mistaken, when you click on one of the list items the paragraph should update to "You clicked [whatever you clicked]"?  I'm sure it is a simple mistake somewhere, but I cannot seem to see it?!  Please help.

 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">

<head>

<title>PHP</title>

<meta http-equiv="content-type" content="text/html;charset=utf-8" />

</head>

<body>

<ul>

<li><a href="?fruit=apples">Apples</a></li>

<li><a href="?fruit=cabbages">Cabbages</a></li>

<li><a href="?fruit=rhubarb">Rhubarb</a></li>

</ul>

 

<p>You clicked <?php echo $fruit; ?></p>

</body>

</html>

 

Your code would only work if register_globals is on, which is never a good idea. Instead you should be using the $_GET superglobal. So it would be $_GET['fruit']. Additionally you should be using isset() to confirm that the fruit index is defined within the $_GET superglobal otherwise (depending on your error reporting level) a warning will be thrown. Something like this would work:

 

if(isset($_GET['fruit']))
{
     echo '<p>You clicked ' . $_GET['fruit'] . '</p>';
}

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