title: MySql auto TIME_STAMP not working
body: <p>I have created a table where I have set a column, <code>payment_time</code>, to <code>TIMESTAMP DEFAULT CURRENT_TIMESTAMP</code> while creating a table.</p>
  
  <p>When I insert values I set <code>payment_time</code> to blank with <code>''</code>. However, when I checked the table on the payment_time is showing 0000-00-00 00:00:00 where I am looking for the current time. Am I making a mistake here?</p>