用php修改日期

Question

Basically that is the function that I use to extract the date from the php and modify it:

      function getAge()
  {
         $result= mysql_query("SELECT date_of_birth 
                        FROM controlpanel 
                        WHERE user_id=".$this->userID) or die(mysql_error());
         $year="";
          if($row=mysql_fetch_array($result))
          {
               $row['date_of_birth'];
          }


  }

$row['date_of_birth']; I want to get the year from that row, and check if it is 0000..if it is I want to return return "Not given";.. if it isnt, I want to compare the full date d-m-y to todays date.. in order to get the persons birth date..however, I am not sure what date functions to use..

Answer 1

if( substr($row['date_of_birth'],0,4) == "0000") echo "Not given";