title: Removal of special characters, a comma separated text, PHP
body: <p>I got my text variable which is user-specified, normally, user should enter the tags which has to look following: </p>
  
  <pre><code>"food, community, relationship"
  </code></pre>
  
  <p>but if user type for example </p>
  
  <pre><code>"food;;[]'.'.;@$#community,,,-;,,,relationship"
  </code></pre>
  
  <p>the script should change it into: </p>
  
  <pre><code>"food, community, relationship".
  </code></pre>
  
  <p>How can I get this done?</p>