title: PHP equivalent of indexOf
body: <p>I have the following JS:</p>
  
  <pre><code>if(window.location.href.indexOf("search.php") != -1 
      || window.location.href.indexOf("list.php") != -1
      || window.location.href.indexOf("view.php") != -1
      || window.location.href.indexOf("contact.php") != -1) {
  </code></pre>
  
  <p>But want to convert it to PHP. What is the equivalent of indexOf in PHP or the best way to do this in PHP.</p>
  
  <p><strong>I don't understand the strpos examples people are linking to below. Perhaps an example more in line with what I have done in JS?</strong></p>