title: Remove backslash \ from string using preg replace of php
body: <p>I want to remove the backslash alone using php preg replace.</p>
  
  <p>For example: I have a string looks like </p>
  
  <pre><code>$var = "This is the for \testing and i want to add the # and remove \slash alone from the given string";
  </code></pre>
  
  <p>How to remove the <code>\</code> alone from the corresponding string using php <code>preg_replace</code> </p>