title: What are the biggest differences between fopen and curl?
body: <p>I am making a web application in PHP and want to read content from another domain.
  It seems that my major options are <code>fopen</code> and <code>curl</code>.</p>
  
  <p>What are the major differences between these two methods, especially regarding security and available options?</p>
  
  <p>Does it matter if the url is an http or https site?</p>