title: add five minute to filemtime function (php)!
body: <p>i have the flowing code </p>
  
  <pre><code>$LastModified = filemtime($somefile) ;
  </code></pre>
  
  <p>i want to add ten minute to last modified time and compare with current time then if $LastModified+ 10 minute is equal to current time delete the file . how can i do that ?! i'm little confusing with unix time stamp . </p>