title: how to redirect the page in my link en php
body: <p>I'm new programmer en PHP I would like  to redirect the page </p>
  
  <p>when I select the link but I don't know what i'm doing wrong because when i select the link i can't see the content of the page but the path of  the browser it a true path.</p>
  
  <p>this is my link:</p>
  
  <pre><code>&lt;li&gt;&lt;a href="category.php?catid=1"&gt;Literat&lt;/a&gt;&lt;/li&gt;
  </code></pre>
  
  <p>but when i put </p>
  
  <pre><code>echo $_GET['catid'];  #en my page category.php  i don't see anything#
  </code></pre>
  
  <p>the page is empty.</p>
  
  <p>i don't know how to make it work?</p>
  
  <p>thank you very much</p>