title: Create a Canonical URL with PHP
body: <p>I've a website which is created using PHP. It Contains so many Non-Canonical URL's. </p>
  
  <p><strong>Example</strong></p>
  
  <p><code>http://example.com/page.php?id=10</code></p>
  
  <p>I just wanna make these kinda URL's into Canonical Form. I searched over Google and Found Solution. It says use link rel=canonical in head tag. It didn't make any changes in my <code>URL</code>. Can anyone tell me, how it works and how can I see that canonical URL is working. I'm new to SEO. Can anyone assist ?</p>