|
|
|
View previous topic
::
View next topic
|
| Author |
Message |
ramon fincken
Site's programmer
Get a free globally recognized avatar
It's free!
Joined: 03 Aug 2007
Posts: 400
Location: A'dam/Diemen, The Netherlands
|
 Posted: Fri Nov 21, 2008 4:09 pm Post subject: [solution][function] Sorting a PHP 2 dimensional multi array on a key in 2nd level |
 |
|
If you need sort this type of array by the date ... you'll probably get stuck on HOW to do this ...
| Code: | $aData = array();
LOOP START
$tmparray = array('event' => $event_string, 'date'=> $date);
$aData[] = $tmparray;
LOOP END |
Well... php.net comments to the resque!
The following post was quite handy:
mail at theopensource dot com
31-Jan-2006 07:34 wrote: |
I wanted to share with you a function that I created to make the array_multisort process much easier for myself... There was some interesting things that I encountered and I will post that in the comments.
I created this function so that all I have to do is tell it what column I want to sort through in a one level deep multidimensional array. You can Try this code in your browser to view the results
ex/
| Code: | <?php
//Here is an array example
$test[0]['name'] = "David";
$test[0]['age'] = 28;
$test[1]['name'] = "Dennis";
$test[1]['age'] = 23;
$test[2]['name'] = "Joseph";
$test[2]['age'] = 42;
//Here is the Function
function sortmddata($array, $by, $order, $type){
//$array: the array you want to sort
//$by: the associative array name that is one level deep
////example: name
//$order: ASC or DESC
//$type: num or str
$sortby = "sort$by"; //This sets up what you are sorting by
$firstval = current($array); //Pulls over the first array
$vals = array_keys($firstval); //Grabs the associate Arrays
foreach ($vals as $init){
$keyname = "sort$init";
$$keyname = array();
}
//This was strange because I had problems adding
//Multiple arrays into a variable variable
//I got it to work by initializing the variable variables as arrays
//Before I went any further
foreach ($array as $key => $row) {
foreach ($vals as $names){
$keyname = "sort$names";
$test = array();
$test[$key] = $row[$names];
$$keyname = array_merge($$keyname,$test);
}
}
//This will create dynamic mini arrays so that I can perform
//the array multisort with no problem
//Notice the temp array... I had to do that because I
//cannot assign additional array elements to a
//varaiable variable
if ($order == "DESC"){
if ($type == "num"){
array_multisort($$sortby,SORT_DESC, SORT_NUMERIC,$array);
} else {
array_multisort($$sortby,SORT_DESC, SORT_STRING,$array);
}
} else {
if ($type == "num"){
array_multisort($$sortby,SORT_ASC, SORT_NUMERIC,$array);
} else {
array_multisort($$sortby,SORT_ASC, SORT_STRING,$array);
}
}
//This just goed through and asks the additional arguments
//What they are doing and are doing variations of
//the multisort
return $array;
}
//Now to test it
$test = sortmddata($test,'age','ASC','num');
print_r ($test);
//This will return
//Array (
//[0] => Array ([name] => Dennis [age] => 23 )
//[1] => Array ( [name] => David [age] => 28 )
//[2] => Array ( [name] => Joseph [age] => 42 )
//)
?> |
|
|
|
| Back to top |
|
 |
Google adsense
Advertisement
|
| Posted: Fri Nov 21, 2008 4:09 pm Post subject: [solution][function] Sorting a PHP 2 dimensional multi array on a key in 2nd level |
|
|
Advertisement
|
|
| Back to top |
|
|
GravityForms
Advertisement
|
| Posted: Fri Nov 21, 2008 4:09 pm Post subject: [solution][function] Sorting a PHP 2 dimensional multi array on a key in 2nd level |
|
|
Advertisement
 |
|
| Back to top |
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
|
|
|
|
