MySQL left join, after create a multidimensional array

Question

I have 2 table and the foreign key is 'timesection_id'. First table: timesection

Second table is content

I would like to create a left join to first table. It have to be order by position. The result should be looks like that:

array (size=1)
  'content' => 
    array (size=2)
      1 => 
        array (size=3)
          'time' => string '12-00' (length=5)
          'name' => string 'Start' (length=21)
          'performer' => 
            array (size=3)
                   0=>
                        'title' => string '12-00'
                        'desc' => string 'etc etc'
                        'shor_desc' => string 'etc etc'
                        'img' => string '1.jpg'
                   1=>
                        'title' => string '12-00'
                        'desc' => string 'etc etc'
                        'shor_desc' => string 'etc etc'
                        'img' => string '1.jpg'
      2 => 
        array (size=3)
          'time' => string '13-00' (length=5)
          'name' => string 'Something' (length=24)
          'performer' => 
            array (size=3)
                   0=>
                        'title' => string '12-00'
                        'desc' => string 'etc etc'
                        'shor_desc' => string 'etc etc'
                        'img' => string '1.jpg'
                   1=>
                        'title' => string '12-00'
                        'desc' => string 'etc etc'
                        'shor_desc' => string 'etc etc'
                        'img' => string '1.jpg'

My sql:

SELECT * FROM timesection
    LEFT OUTER JOIN content ON  timesection_id = timesection.id
    ORDER BY timesection.position ASC

And i have this result:

 0 => 
    array (size=9)
      'id' => null
      'name' => string 'KezdĂŠs' (length=7)
      'time' => string '11:00' (length=5)
      'position' => null
      'title' => null
      'short_desc' => null
      'desc' => null
      'img' => null
      'timesection_id' => null
  1 => 
    array (size=9)
      'id' => string '1' (length=1)
      'name' => string 'KezdĂŠs, Sikerdal debĂźtĂĄlĂĄsa' (length=31)
      'time' => string '12:00-14.00' (length=11)
      'position' => string '1' (length=1)
      'title' => string 'Ăv Embere orvoscsoport' (length=23)
      'short_desc' => string '' (length=0)
      'desc' => string 'PĂŠldĂĄtlan ĂśsszefogĂĄs eredmĂŠnyekĂŠnt egĂŠszsĂŠges gyermeket szĂźlt ĂŠs nĂŠgy ĂŠletet mentett meg egy tĂśbb hĂłnapja agyhalott asszony Debrecenben' (length=149)
      'img' => string '1.jpg' (length=5)
      'timesection_id' => string '2' (length=1)
  2 => 
    array (size=9)
      'id' => string '2' (length=1)
      'name' => string 'KezdĂŠs, Sikerdal debĂźtĂĄlĂĄsa' (length=31)
      'time' => string '12:00-14.00' (length=11)
      'position' => string '2' (length=1)
      'title' => string 'Varga RĂłbert' (length=13)
      'short_desc' => string '' (length=0)
      'desc' => string 'Varga RĂłbertVarga RĂłbertVarga RĂłbertVarga RĂłbertVarga RĂłbertVarga RĂłbertVarga RĂłbertVarga RĂłbertVarga RĂłbertVarga RĂłbertVarga RĂłbertVarga RĂłbert' (length=156)
      'img' => string '1.jpg' (length=5)
      'timesection_id' => string '2' (length=1)
  3 => 
    array (size=9)
      'id' => string '3' (length=1)
      'name' => string 'KezdĂŠs, Sikerdal debĂźtĂĄlĂĄsa' (length=31)
      'time' => string '12:00-14.00' (length=11)
      'position' => string '3' (length=1)
      'title' => string 'BenkĹ Vilmos ĂŠs fiatal tehetsĂŠgek' (length=36)
      'short_desc' => string '' (length=0)
      'desc' => string 'BenkĹ Vilmos ĂŠs fiatal tehetsĂŠgekBenkĹ Vilmos ĂŠs fiatal tehetsĂŠgekBenkĹ Vilmos ĂŠs fiatal tehetsĂŠgekBenkĹ Vilmos ĂŠs fiatal tehetsĂŠgekBenkĹ Vilmos ĂŠs fiatal tehetsĂŠgekBenkĹ Vilmos ĂŠs fiatal tehetsĂŠgekBenkĹ Vilmos ĂŠs fiatal tehetsĂŠgekBenkĹ Vilmos ĂŠs fiatal tehetsĂŠgekBenkĹ Vilmos ĂŠs fiatal tehetsĂŠgekBenkĹ Vilmos ĂŠs fiatal tehetsĂŠgekBenkĹ Vilmos ĂŠs fiatal tehetsĂŠgek' (length=396)
      'img' => string '1.jpg' (length=5)
      'timesection_id' => string '2' (length=1)

If the main table has more records from subtable i would like to create a performer value and put it in a sub array. Performen value can be null.

Exactly what is your expectation? And SQL query or the php code for it? Difference being that the code you posted looks like some sql configuration for some framework, but it is entirely unclear which is correct. Could you update your question with a little bit more detail please? — Digitalis
– Digitalis, Commented Nov 18, 2014 at 23:23
SQL or PHP code are good for me. I edited the question. Thank you Digitalis — Siki-Siki
– Siki-Siki, Commented Nov 19, 2014 at 11:37

David162795 · Accepted Answer · 2014-11-23 18:20:32Z

3

SQL Query:

SELECT timesection.id,timesection.name,timesection.time,
   content.title,content.short_desc,content.desc,content.img,content.id as cid
   FROM timesection
   LEFT JOIN content ON content.timesection_id = timesection.id
   ORDER BY timesection.position , content.position

PHP CODE: (note: using old deprecated mysql_* functions, consider using mysqli or PDO instead)

$r = mysql_query($query);
$array = array('content'=>array());
$i=0;
$lastid = null;
while($row=mysql_fetch_object($r))
{
 if($lastid!==$row->id)
 {
  $array['content'][++$i]=array('time'=>$row->time,'name'=>$row->name,'performer'=>array());
  $lastid=$row->id;
 }
 if($row->cid!==null)
 {
  $array['content'][$i]['performer'][]=array('title'=>$row->title,'short_desc'=>$row->short_desc,'desc'=>$row->desc,'img'=>$row->img);
 }
}

edited Nov 23, 2014 at 18:20

answered Nov 19, 2014 at 15:17

David162795

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2 Comments

Siki-Siki Over a year ago

TY the comment! I have this error message: Fatal error: Call to undefined function fetch_object() in path\showContent.php on line 1

Siki-Siki Over a year ago

Sorry my mistake. I just have to write mysql_fetch_object and everything is ok. Ty again.

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