title: how to convert human date to unix by strotime
body: <p>Can anyone help , i want to to make simple script as anyone insert human date like <code>2013 - 9 - 25 19:10:00 P.M</code>   to milliseconds Unix .</p>
  
  <p>is it possible using <code>strtotime</code>.</p>
  
  <p>I want anyone to show me how to make the whole human date (2013 - 9 - 25 19:10:00 P.M ) be in one variable so i can convert it then echo it</p>