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POEmpty $_GET array despite defining variable
 

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    <p>I'm learning php so bare with me please. I was just throwing together the beginnings of a website on my localhost server -- Apache, MYSQL, MYPHPADMIN. All appeared to be working fine until I attempted to link up the navigation dynamically using $_GET. Here is the code in index.php: </p> <pre><code>&lt;?php include('Config/setup.php') ?&gt; &lt;?php if ($_GET['page'] == ''){ $pg = 'home'; } else { $pg =$_GET['page']; } ?&gt; &lt;!DOCTYPE HTML&gt; &lt;html&gt; &lt;head&gt; &lt;meta http-equiv="Content-Type" content="text/html; charset=utf-8"&gt; &lt;title&gt;FTS&lt;/title&gt; &lt;link rel="stylesheet" type="text/css" href="css/Styles.css"/&gt; &lt;/head&gt; &lt;body&gt; &lt;div class ="header temp_Block"&gt; &lt;?php include('templates/header.php');?&gt; &lt;/div&gt; &lt;div class ="main_nav temp_Block"&gt; &lt;?php include('templates/main_nav.php');?&gt; &lt;/div&gt; &lt;div id ="Content"&gt; &lt;div class ="main_content temp_Block "&gt; &lt;?php include ('content/'.$pg.'php'); ?&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class = "footer temp_Block"&gt; &lt;?php include('templates/footer.php');?&gt; &lt;/div&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p>When I checked my links to see if I was able to link to my various pages -- home, services, about us etc. Its giving me this error: </p> <pre><code>Notice: Undefined index: page in C:\xampp\htdocs\test\index.php on line 6 Warning: include(content//content/homephp): failed to open stream: No such file or directory in C:\xampp\htdocs\test\index.php on line 35 Warning: include(): Failed opening 'content//content/homephp' for inclusion (include_path='.;C:\xampp\php\PEAR') in C:\xampp\htdocs\test\index.php on line 35 </code></pre> <p>So I ran this to see what was going on with $_GET:</p> <pre><code>var_dump($_GET); exit; </code></pre> <p>The array is empty. IT shows nothing. I've used this method before but the difference was I was on a hosted site. I checked to see if I had permissions problems but I checked apache.conf and nothing appeared to be wrong. </p> <p>Any help would be appreciated since I'm really trying to get my head around this stuff. Thanks in advance.</p>
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    1. COHow does the accessed URL look in your browser address bar for above result? Also note the missing period here: `include ('content/'.$pg.'php');`. Has this ever worked? Take care of filtering (path traversal) with at least `basename()`!
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    2. COYou should use [isset()](http://php.net/isset) instead of comparing against empty string.
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    3. COScope. Your $pg is a local var within the brackets. Unsure if that's a big deal with php, I'm new as well. Search variable scope and php manual comes up in google, has some examples like your site and when to use local var vs global access
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