looping through a multi dimentional arrry

petr.pavel 19 Junior Poster · 2008-04-02T01:48:37+00:00

Hi, first let me suggest that you should think of some less complicated way of displaying the data. I guess you could achieve the same result with just about twenty lines of code.

But to answer you questions:

The main problem probably is that you have echo '<tr>... inside of all your three loops. So it prints a row of all seven days for each day and term - which isn't what you want. There's no simple solution for this. I suggest you rewrite it into a single query for all days using SQL construct week_day IN (0,1,2,3,4,5,6) and then convert the results into two-dimmensional array: $data[$orderNumber][$row->weekDay] . Then traverse $data in two loops: one for each row of the array and second for each day of the week.
for($wk_day =0; $wk_day < count($all_avail_days); and foreach($all_avail_days as $key => $avail) does the same only using a different construct. So you are basically looping the same thing twice.
maybe you're referencing the array items wrongly - use $all_avail_days["$wk_day"][$key]["start_time"] instead of $all_avail_days[$wk_day][$key][start_time] Reasoning: $all_avail_days["1"] is something else than $all_avail_days[1].
$type_start_time7 -like variables aren't cleared after being used so you may be printing old values from previous loops. You should have else for each if($day == ...) where you clear the variables: $time_id7 = $type_start_time7 = $type_end_time7 = $colour7 = NULL; Or you can get rid of them completely and use the directly $all_avail_days["$wk_day"][$key]["start_time"] stuff with printf()
You may also want to use ORDER BY in your query to have the records sorted by time
I don't think there's any such thing as </br>. <br> is ok though.

Let me know if you have any questions.

assgar 14 Junior Poster in Training · 2008-04-10T08:16:02+00:00

Hi

Thanks for the reply.

The days in column format for the week is displaying correctly.
The current problem is when the foreach loop ends in position # 1
only the last iteration of the loop is displayed.

When the foreach loop ends in position # 2 to try and display
all the iteration of the array. The event time displays but the
event colour ($colour1 ... $colour7) does not.

It appears

<?


 //work hours
 $start_time = "09:00:00";
 $end_time = "05:00:00";


 //get availability nfo
 /** selected data time_id, week_day, start_date, end_date, start_time, end_time, colour
     in array**/
    $avail_day; //availaibility
     

 /**selected data event_id, event_name, event_date, event_time in array**/
   $events;//appointment


 echo"<table>";

 //Loop over the hours
 for($time = $start_time; $time <= $end_time; $time += $add_time)
   {
	//format 24 hour time interval for passing via url
	$interval_24hr =  date("H:i:s", $time);


	echo "<tr>";
        //Output the time interval label
	echo"<td width=\"8%\" height=\"15\" bgcolor=\"\" align=\"center\">
              <ul>
                <li>".date("h:i A", $time)."</li>
               </ul>
       	      </td>";

       //loop to display days of the week
      foreach($avail_day as $key => $avail)//rows
       {
	  //diaplay event type colour and labeling to event end time
	  $seg_code = $avail_day['event_type_code'];
	  $time_id = $avail_day['time_id'];
	  $seg_day = $avail_day['week_day'];

		   //monday
		   if($seg_day == 1 && $interval_24hr  >= $avail_day['start_time']&& 
		      $interval_24hr <= $avail_day['end_time'])
			  {
		         $colour1 = "#".$avail_day['colour'];
			  }
			  elseif($seg_day == 1)
			     {
				$colour1 = "#ebeae0";
			     }
		    
		    //note tuesday to sunday not listed for space reasons

  	   
  	   foreach($events as $key => $event)
  	     {
		  //determine day of week
                                   $week_day = date('l',strtotime($event['event_date']));	  	   
	  	   //appointment or name description
	  	   if($week_day == "Monday" && $event_time >= $time && 
	  	      $event_time < ($time + $add_time)) 	
		      { 
		   	  $day = 550;
		   	  $event_name1 = $event['last_name'];
		      }
		      elseif
		      	{
		      	   /**tuesday to sunday not listed for space reasons**/
		      	}
            }
	}//end foreach postion#1
	  
	    
	    echo"<td width=\"13%\" height=\"12\" bgcolor=\"$colour1\">
    	         	$event_name1</td>
    	       	      <td width=\"13%\" height=\"12\" bgcolor=\"$colour2\">
    	        	$event_name2</td>
    	       	       <td width=\"13%\" height=\"12\" bgcolor=\"$colour3\">
    	        	  $event_name3</td>
    	       		<td width=\"13%\" height=\"12\" bgcolor=\"$colour4\">
    	        	  $event_name4</td>
    	       		 <td width=\"13%\" height=\"12\" bgcolor=\"$colour5\">
    	        	  $event_name5</td>
    	       		 <td width=\"13%\" height=\"12\" bgcolor=\"$colour6\">
    	        	  $event_name6</td>
    	       		 <td width=\"13%\" height=\"12\" bgcolor=\"$colour7\">
    	        	  $event_name7</td>";
	  	echo"</tr>\n";

	
	// }//end foreach postion#2
    }//for



echo"</table>";
?>

assgar 14 Junior Poster in Training · 2008-04-13T23:04:10+00:00

Hi thanks for responding

I made the rows easier to read. But that is not my problem it’s the looping.
I have worked the code and have all the event types showing for each day column.
Which is what I am trying to accomplish.
The problem is the if the person is working a short day i.e. 9:00AM to 12:00PM the last
type colour for the short day fills the time slots to 5:00PM instead of stopping at 12:00pm.

I have tried else statement to empty the $seg_colour array with no luck.

This if statement is to match the event type time to the listed time of day.
Should this not prevent unrelated event types from showing?

if($interval_24hr >= $avail_day['type_start_time'] && 
       $interval_24hr <= $avail_day['type_end_time'])

NOTE:I have temporarily removed the appointments loop to focus on the event type looping.

<?
 //work hours
  $start_time = "09:00:00";
  $end_time = "05:00:00";
 
 
  //get availability nfo
  /** selected data time_id, week_day, start_date, end_date, start_time, end_time, colour
     in array**/
     $avail_days; //availaibility
      
 
  /**selected data event_id, event_name, event_date, event_time in array**/
    $events;//appointment
 
 
  echo"<table>";

 
 //Loop over the hours
  for ($time = $start_time; $time <= $end_time; $time += $add_time)
    {
	   //format 24 hour time interval for passing via url
	   $interval_24hr =  date("H:i:s", $time);

	   /**-----------------event time listing and event type--------------**/
 	   echo "<tr>";
           //Output the time interval label
 	   echo"<td width=\"8%\" height=\"15\" bgcolor=\"\" align=\"center\">
                <ul>
                 <li>".date("h:i A", $time)."</li>
                </ul>
        	</td>";


           /**----------------------event type display------------------------------**/
	  //loop through array to diaplay event type colour and labeling
	  foreach ($avail_days as $avail_day)
 	     {
 		//diaplay event type colour and labeling to event end time
		if($interval_24hr >= $avail_day['type_start_time'] && 
		   $interval_24hr <= $avail_day['type_end_time'])
		    {
		    	$seg_colour  = "#".$avail_day['colour'];
			$time_id = $avail_day['time_id'];
			$seg_day = $avail_day['week_day'];

			//monday
			if($seg_day == 1)
			    {
		        	$colour1 = $seg_colour; 
			    }
			   //tuesday
			   elseif($seg_day == 2)
			     {
		    		/**note elseif for tuesday to sunday 
                                                                    not isted   for space reasons**/	                                      }
	
	    /**----------------------event--------------------**/
	    /*loop to provide appointment linked to appropriate event time 
                        slot goes here*/
	
	  /**---------------dynamic looping rows and columns----------**/
	  echo'<td width="13%" height="12" bgcolor="$colour1">
	         $event_name1</td>
	       	<td width="13%" height="12" bgcolor="$colour2">
	       	  $event_name2</td>
	       	<td width="13%" height="12" bgcolor="$colour3">
	       	  $event_name3</td>
	       	<td width="13%" height="12" bgcolor="$colour4">
	       	  $event_name4</td>
	       	<td width="13%" height="12" bgcolor="$colour5">
	       	  $event_name5</td>
	       	<td width="13%" height="12" bgcolor="$colour6">
	       	  $event_name6</td>
	       	<td width="13%" height="12" bgcolor="$colour7">
	       	   $event_name7</td>";
	   echo"</tr>\n";
    }

echo"</table>";
?>

assgar 14 Junior Poster in Training · 2008-04-20T22:14:09+00:00

Hi thanks for responding

After various approaches that worked partially this is the solution.
I am open to suggestions on improving on it.

NOTE:I have temporarily removed the appointments loop to focus on the event type looping.

<?
 //work hours
  $min_start1 = "09:30:00";//earliest appointment 
  $start_time = "09:00:00";//office hours
  $end_time = "05:00:00";
 
 
  //get availability nfo
  /** selected data time_id, week_day, start_date, end_date, 
      start_time, end_time, colour in array**/
  $avail_days; //availaibility
      
 
  /**selected data event_id, event_name, event_date, event_time in array**/
    $events;//appointment
 
 
  echo"<table>";

 
 //Loop over the hours
  for ($time = $start_time; $time <= $end_time; $time += $add_time)
    {
	   //format 24 hour time interval for passing via url
	   $interval_24hr =  date("H:i:s", $time);

	   /**-----------------------event time listing and event type------------------**/
 	   echo "<tr>";
           //Output the time interval label
 	   echo"<td width=\"8%\" height=\"15\" bgcolor=\"\" align=\"center\">
                <ul>
                 <li>".date("h:i A", $time)."</li>
                </ul>
        	</td>";


           /**----------------------event type display------------------------------**/
	  //loop through array to diaplay event type colour and labeling
	  foreach ($avail_days as $avail_day)
 	     {
 		//day of the week Mon to sun 
		$seg_day = $avail_day['week_day'];

		//diaplay event type colour and labeling to event end time
		//monday
		if($seg_day == 1 && $interval_24hr >= $avail_day['start_time'] && 
		    $interval_24hr <= $end_time)
			{
			    $colour1  = "#".$avail_day['colour'];
			}
			elseif($seg_day == 1 && $interval_24hr > $end_time || 
			       $seg_day == 1 &&  $interval_24hr < $min_start1)
		            {
			        $colour1 = "#ebeae0";//default background colour
			    }
		 //tuesday
		 if($seg_day == 2)
		    {
		    	/*note: for tuesday to sunday not listed for space reasons
		    		it is the same as for monday except $colour2 etc is used*/ 
			     .....
	     }
	
	    /**----------------------event--------------------**/
	    /*loop to provide appointment linked to appropriate event time slot
	      goes here*/
	
	  /**------------------dynamic looping rows and columns--------------**/
	  echo'<td width="13%" height="12" bgcolor="$colour1">
	         $event_name1</td>
	       	<td width="13%" height="12" bgcolor="$colour2">
	       	  $event_name2</td>
	       	<td width="13%" height="12" bgcolor="$colour3">
	       	  $event_name3</td>
	       	<td width="13%" height="12" bgcolor="$colour4">
	       	  $event_name4</td>
	       	<td width="13%" height="12" bgcolor="$colour5">
	       	  $event_name5</td>
	       	<td width="13%" height="12" bgcolor="$colour6">
	       	  $event_name6</td>
	       	<td width="13%" height="12" bgcolor="$colour7">
	       	   $event_name7</td>";
	   echo"</tr>\n';
    }

echo"</table>";
?>