Time Loop

["MDB" <mdbevins@xxxxxxxxx>]

Hello All, I am trying to figure out how to loop through 2 given times.  I 
have a start time and a end time and want to look through every X mins and 
add a radio button.  Below is my latest try, can someone please help me out?


     $endTime = "17:00:00";
     $currentTime="09:00:00";

     $num_intervals = floor(($endTime - $currentTime) / 30);

     echo ("Num_INter: ".$num_intervals."</br>");

     $buffer_time = $currentTime;
     for($i = 0; $i < $num_intervals; $i++)
     {
       echo ("<tr>");
       echo ("<td>".$currentTime."</td>");

       foreach ($days as $day)
       {
           echo ("<td>");
           echo ("<input type='radio' name='dateTimeSelection' 
value=$day>");

           echo ("</td>");
       }


       $buffer_time += $interval;
       echo ("</tr>");
     }



ps  I was having problems with my news reader, this may be posted twice, if 
so. Sorry.

TIA 


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