Question

I have table entries in my database with structure:

id | card | event | time | day | hm

• > id – is unique ID of each entry.
• > card – is number.
• > event – is number (0, 1, 2, or 3)
• > time – is mysql_timestamp
• > day – is day of month when entry was added (date(“j”, time())
• > hm – some other info…

I want to display all entries for one month in html table.
Now I’m using this simple query:

$sql = "SELECT event, time, day, hm FROM `entries` 
WHERE card=$card_t 
AND YEAR(time)=$year 
AND MONTH(time)=$month
AND event IN (0,1,3) 
ORDER BY `time` ASC;";

Conditions of output:
table must have minimum one row for a day (31 rows for January).
if there is no entries for day(1-31) row must be:

if there is only two entries for day row must be:

<tr>
   <td>$day_number</td>
   <td>$time_of_first_event</td>
   <td>$first_event</td>
   <td>$time_of_last_event</td>
   <td>$last_event</td>
 </tr>

 if there is more than two entries a day two must be (I will hide second one with jquery later):

  <tr>
   <td>$day_number</td>
   <td>$time_of_first_event</td>
   <td>$first_event</td>
   <td>$time_of_last_event</td>
   <td>$last_event</td>
 </tr>
 <tr>
     <table>
       <tr>
        <td>$time</td>
        <td>$event</td>
       </tr>
     </table>
 </tr>

So it looks like:

| 1 | no entry                                          |
| 2 | no entry                                          |
| 3 | no entry                                          |
| 4 | time_first | event_fisrt | time_last  |event_last |
                 | time2 | event 2                      |
                 | time3 | event 3                      |
| 5 | no entry                                          |
... 

But all i got now is output of 31 row and if one day have more than it duplicates this day row and displays all rows for this day:

| 1 | no entry       |
| 2 | no entry       |
| 3 | no entry       |
| 4 | time1 event 1  |
| 4 | time2 event 2  |
| 4 | time3 event 3  |
| 5 | no entry       |
...

Please help me guys and sorry for mistakes, english is not my native lang.

Answer 1

Use GROUP_CONCAT in sql and explode foreach loop

$sql = 


"SELECT 
        GROUP_CONCAT(event SEPARATOR ","), GROUP_CONCAT(time SEPARATOR ","), 
        day , GROUP_CONCAT(hm SEPARATOR ",") FROM `entries` 
    WHERE 
        card=$card_t 
        AND YEAR(time)=$year 
        AND MONTH(time)=$month
        AND event IN (0,1,3) 
    GROUP BY 
        day
    ORDER BY 
        `time` ASC;";

In foreach,

foreach ($entries as $entry) {
    if ($entry['event'] == "") {
        echo '<tr>';
             echo '<td>'.$no++.'</td>';
             echo '<td>No events</td>';
             ...................
        echo </tr>';
        continue;
    }

    $events = explode("," , $entry['event']);
    if (count($events) > 0) {
       // Have multiple row here
       foreach($events as $event) {
           ........................
       }
    } else {
        echo '<tr>';
             echo '<td>'.$no++.'</td>';
             echo '<td>'.$entry['event'].'</td>';
             ...................
        echo </tr>';
    }
}