PHP - Write Results To Array And Sort

Why does krsort return the array as "1"?

Code: [Select]
$m = array('34' => 1122, '6' => 1944, '9' => 1710);
print_r($m); //outputs: Array ( [34] => 1122 [6] => 1944 [9] => 1710 )
print_r(krsort($m)); //outputs: 1

What i need is the output to be

Array ( [6] => 1944 [9] => 1710 [34] => 1122)

Is there a way to use sort($Array) on numbers but reverse it. So instead of 1 to 3 itll do 3 to 1 ? AKA descending order?

Can't find a function that would do unless theres a second sort function ?

Thanks

Hi, i have an issue to sort gallery photos by date. Right now its sort by Value (Name).   here is the code    index.php contains :  

<div>

	<?php foreach($categories_array as $photo_category=>$photos_array){?>
    
    	<?php 
		$category_thumbnail = $gallery_url."/layout/pixel.gif";
		if(file_exists('files/'.$photo_category.'/thumbnail.jpg')){
			$category_thumbnail = $gallery_url.'/'.$photo_category.'/thumbnail.jpg';
		}
		
		$category_url = $gallery_url.'/'.$photo_category;
		?>
        
  		<span class="category_thumbnail_span" style="width:<?php echo $settings_thumbnail_width;?>px; height:<?php echo $settings_thumbnail_height+20;?>px;">
        <a class="category_thumbnail_image" href="<?php echo $category_url;?>" style="width:<?php echo $settings_thumbnail_width;?>px; height:<?php echo $settings_thumbnail_height;?>px; background-image:url('<?php echo $gallery_url;?>/layout/lens_48x48.png');" title="<?php echo htmlentities(ucwords(str_replace('-', ' ', $photo_category)));?>">
        <img src="<?php echo $category_thumbnail;?>" width="<?php echo $settings_thumbnail_width;?>" height="<?php echo $settings_thumbnail_height;?>" alt="<?php echo htmlentities(ucwords(str_replace('-', ' ', $photo_category)));?>" />
        </a>
        <a class="category_thumbnail_title" href="<?php echo $category_url;?>" title="<?php echo htmlentities(ucwords(str_replace('-', ' ', $photo_category)));?>">
        <?php echo htmlentities(str_replace('-',' ', truncate_by_letters($photo_category, 16, '..')), ENT_QUOTES, "UTF-8");?> (<?php echo count($photos_array);?>)
        </a>
        </span>
    

	<?php } ?>

</div>

the sort function :

ksort($categories_array);

I've tried various sort methods on this array. And seem to be failing.
Code: [Select]
Array
(
    [monkey quest] => 8
    [monkey] => 2
    [monkey sports] => 0
    [monkey go happy] => 0
    [monkey go happy 3] => 1
    [monkey joes] => 0
    [monkey games] => 2
    [monkey bread recipe] => 1
    [monkey go happy 2] => 3
    [monkey quest trailer] => 4
    [monkey quest guide] => 5
    [monkey quest nick] => 6
)

What I want to do or attempt to do rather is sort the array by the => value from highest to lowest (or maybe in reverse as well, but one thing at a time)

My last failed attempt I was trying out usort() as my concept..
Code: [Select]
function cmp($a, $b)
{
    if ($a == $b)
{
        return 0;
    }
    return ($a < $b) ? -1 : 1;
}

echo "<pre>";
print_r(usort($kw, "cmp"));
echo "</pre>";

But the only thing I am left with on the page is just 1 everything else seems to be getting lost, or I dunno whats going on. So I think I've done stumped my self. Now I'm looking for idea's assuming I am tackling this all wrong.

i need some help sorting my arrays. i have a class that selects data from database, and holds it inside a class to be used multiple times. rather then executing multiple queries. i know how to sort an array. but i am sorting arrays inside an array



$data = arrray(

array(

'id'=>1,

'_name'=>'Server A',

'_date_added'=>1298207645.5424,

);

array(

'id'=>2,

'_name'=>'Server B',

'_date_added'=>1298247384.4839,

);

array(

'id'=>3,

'_name'=>'Server C',

'_date_added'=>1298218493.0493,

);
);



i want to sort my array descending by key _date_added
hope you understand...

Hi freaks,

Got a simple one for ya, I THINK?

I have a multi-array that resembles this..
Code: [Select]
$_SESSION["book_array"] = array(0 => array("plantID" => $plantID, "botanicalName" => $botanicalName, "commonName" => $commonName, "use" => $use));

I would like to sort it by the botanicalName key of the inner array before I call the forech loop that renders the display so that after it renders the table the items will be seen alphabetically, code below..
Code: [Select]
<?php 
$bookOutput = "";
//$plant_use_array = '';
if (!isset($_SESSION["book_array"]) || count($_SESSION["book_array"]) < 1) {
    $bookOutput = '<tr><td colspan="4"><h6>Your Book is EMPTY!</h6></td></tr>';
} else {
// Start the For Each loop
$i = 0; 
    foreach ($_SESSION["book_array"] as $each_item) { 
$plantID = $each_item['plantID'];
$botanicalName = $each_item['botanicalName'];
$botanicalName = stripslashes($botanicalName);
$commonName = $each_item['commonName'];
$commonName = stripslashes($commonName);
$use = $each_item['use'];
//$x = $i + 1; 
// Dynamic table row assembly
$bookOutput .= "<tr>";
$bookOutput .= '<td><a href="plant_details.php?plantID=' . $plantID . '" id="bodyLink">' . $botanicalName . '</a></td>';
$bookOutput .= '<td>' . $commonName . '</td>';
$bookOutput .= '<td><strong>' . $use . '</strong></td>';
$bookOutput .= '<td><form action="book.php" method="post"><input name="removeBtn" type="submit" value="Remove"/><input name="index_to_remove" type="hidden" value="' . $i . '" /></form></td>';
$bookOutput .= '</tr>';
$i++; 
    } 
}
?>

Any help would be much appreciated!  Thanks in advance.

I've got a multidimensional array that has 2 columns.  The first column is numerical (country_id), and the second column is text (country_name), which may or may not be data that will be turned into an array. 

Looks something like this:

column 1 (index 0) = 42
column 2 (index 1) = Great Britain|England

I use a while loop to create an array of these rows, then a use a foreach loop to go through index[1] of each row.  If there is a single name for a country, it is added to a new array, but if there is more than one name for a country, then both names are added to the new array. So, for example, if we had this data:

row1
column 1 (index 0) = 12
column 2 (index 1) = Algeria

row2
column 1 (index 0) = 22
column 2 (index 1) = Ethiopia

row3
column 1 (index 0) =42
column 2 (index 1) = Great Britain|England

Then the final array would look like this:

index[0] = 12  index[1] = Algeria
index[0] = 22  index[1] = Ethiopia
index[0] = 42  index[1] = Great Britain
index[0] = 42  index[1] = England

Now I would like to sort by index[1] to get the following alphabetical order:

index[0] = 12  index[1] = Algeria
index[0] = 42  index[1] = England
index[0] = 22  index[1] = Ethiopia
index[0] = 42  index[1] = Great Britain

What do I use?  I've fooled around with sort, usort, asort ... can't figure it out.

Thanks in advance.

Hello,

Im struggling with this, probably because of my lack of fundamental knowledge of arrays.

What i want to do is:
make an array with two keys. 'id' and 'distance'.

I want to sort the results by distance, displaying the id's...

im looking at ksort() as the solution, however i don't think im implementing it properly as i dont think i have set the array up properly!!

what i have is not good...

Code: [Select]
<?php
while ($row = mysql_fetch_array($result)) {
//get the photographers postcode and split it into 2 pieces
$p_postcode = explode(' ',$row['address_post_code']);
//get the photographers postcode and split it into 2 pieces
$u_postcode_a = explode(' ',$u_postcode);
//run the two postcodes throught the function to determin the deistance
$final_distance = return_distance($u_postcode_a[0], $p_postcode[0]);
//start the variable so we can add to it later on
$photographers_inrange = "";
//declare this variable to help with the comma spacing too EDIT LOOK TO LINE 46
//$i2 = 1;
$photographers_inrange = array();
//if the distance is smaller or equal to the distance the photographer covers
if($final_distance <= $row['cover_distance']){
//get their id
$photographers_inrange['id'] = $row['ID'].',';
$photographers_inrange['distance'] = ''.$final_distance;
//echo $photographers_inrange;
//EDIT: this method does not work when just one result is returned. now i use substr -1.
//if this isnt the last result
//if($i++ <= $i2++){
//then add a comma for the sql statement
//$photographers_inrange .= ',';
//}
}

ksort($photographers_inrange);
foreach ($photographers_inrange as $key => $val) {
    echo "togs[" . $key . "] = " . $val . "<br/>";
}
 ?>
with $photographers_inrange being where it is, i am getting alot of empty arrays. not what i want.
i just need to know how to add to the original array, and how to then sort it.

thanks for your ongoing help!!

Hi, I have an array of type array_name[roll_number][aggregate_marks]. How do I sort such array on 'aggregate_marks'? My attempts on sort, asort haven't worked.

I have a bunch of PDF's, some of them having Uppercase first letters and some having lowercase first letters. Right now my code is alphabetizing all of the Uppercase first letters first then all of the lowercase. I want them to be mixed.

$dir = "../../forms/pdf/";
foreach(glob($dir.'*.pdf') as $pdf){
    $files[] = str_replace($dir, '', $pdf);
}

then:
<select name="current_pdf" id="current_pdf">
            <option value="">Please Select a PDF to replace</option>
            <?php
            foreach($files as $file) {
                echo "<option value=\"$file\">" . $file . "</option>";
            }
            ?>
            </select>

hi,

i'm trying to sort an array of associative arrays, based on one of the keys.

if the value of the key is a primitive, normal sorting occurs - this works fine.

if the value of the key is an array, i'd like to have it sorted by "groups"

here's an example:

Code: [Select]
<?php

$data[] = array('name' => 'h', 'list' => array(1,2));
$data[] = array('name' => 'g', 'list' => array(1));
$data[] = array('name' => 'a', 'list' => array(1,3));
$data[] = array('name' => 'f', 'list' => array(2));
$data[] = array('name' => 'e', 'list' => array(2,3));
$data[] = array('name' => 'b', 'list' => array(3));
$data[] = array('name' => 'c', 'list' => array(1,2,3,4));
$data[] = array('name' => 'd', 'list' => array(3,4));

function deep_sort($array, $sorton){

usort($array, function($a, $b) use($sorton) {

$a = $a[$sorton];
$b = $b[$sorton];

if(is_array($a) && is_array($b)){

// this bit is obviously flawed - only included for illustrative purposes
$a = implode('', $a);
$b = implode('', $b);

}

return ($a == $b) ? 0 : ($a > $b) ? 1 : -1;

});

return $array;

}

$sorted_by_name = deep_sort($data, 'name');

print '<pre>';

print_r($sorted_by_name);

print '</pre>';

$sorted_by_list = deep_sort($data, 'list');

print '<pre>';

print_r($sorted_by_list);

print '</pre>';

?>
the sorted_by_name bit is fine - but for sorted_by_list, what i want returned is all the array ordered as follows:

all those with "1" (or the lowest if none have "1") in it's list value first, then all those remaining that have the next highest ("2"), etc.

so right now, the returns for sort_by_list look like this:

Code: [Select]
Array
(
    [0] => Array
        (
            [name] => g
            [list] => Array
                (
                    [0] => 1
                )

        )

    [1] => Array
        (
            [name] => f
            [list] => Array
                (
                    [0] => 2
                )

        )

    [2] => Array
        (
            [name] => b
            [list] => Array
                (
                    [0] => 3
                )

        )

    [3] => Array
        (
            [name] => h
            [list] => Array
                (
                    [0] => 1
                    [1] => 2
                )

        )

    [4] => Array
        (
            [name] => a
            [list] => Array
                (
                    [0] => 1
                    [1] => 3
                )

        )

    [5] => Array
        (
            [name] => e
            [list] => Array
                (
                    [0] => 2
                    [1] => 3
                )

        )

    [6] => Array
        (
            [name] => d
            [list] => Array
                (
                    [0] => 3
                    [1] => 4
                )

        )

    [7] => Array
        (
            [name] => c
            [list] => Array
                (
                    [0] => 1
                    [1] => 2
                    [2] => 3
                    [3] => 4
                )

        )

)whereas i'd like to get back:
Code: [Select]
Array
(
    [0] => Array
        (
            [name] => g
            [list] => Array
                (
                    [0] => 1
                )

        )

    [1] => Array
        (
            [name] => h
            [list] => Array
                (
                    [0] => 1
                    [1] => 2
                )

        )

    [2] => Array
        (
            [name] => c
            [list] => Array
                (
                    [0] => 1
                    [1] => 2
                    [2] => 3
                    [3] => 4
                )

        )

    [3] => Array
        (
            [name] => a
            [list] => Array
                (
                    [0] => 1
                    [1] => 3
                )

        )

    [4] => Array
        (
            [name] => f
            [list] => Array
                (
                    [0] => 2
                )

        )

    [5] => Array
        (
            [name] => e
            [list] => Array
                (
                    [0] => 2
                    [1] => 3
                )

        )

    [6] => Array
        (
            [name] => b
            [list] => Array
                (
                    [0] => 3
                )

        )   

    [7] => Array
        (
            [name] => d
            [list] => Array
                (
                    [0] => 3
                    [1] => 4
                )

        )

)
TYIA for any suggestions

Hello all,

I have a rather large array and I need to list it's contents in an alphabetical list.

The array is built like this:

$array['query']['row']['0']['title'] = 'Bob';
$array['query']['row']['1']['title'] = 'Andy';
$array['query']['row']['2']['title'] = 'Tom';

I need to sort it so it is in alphabetical order based on the title. Is there an easy way to do this?

Hello , i am trying to sort a 2d dimensional array by the first column(id) and i havent find anything till now

This is my code for the 2d array:

$username = $_SESSION['username'];
$c = 0;

$row=1;
$col=1;
$users_array = array();
$get_from = mysql_query("SELECT id FROM my_activity WHERE from_user='$username'");
while($fetch1 = mysql_fetch_array($get_from)){
$id[$c] = $fetch1[0];
$get_from_user = mysql_query("SELECT * FROM my_activity WHERE id='$id[$c]'");
$get_user_rows = mysql_num_rows($get_from_user);
while($guser = mysql_fetch_array($get_from_user)){
$user[$c] = $guser['to_user'];
$users_array[$id[$c]][$user[$c]]= $id[$c].".".$user[$c];
$c++;
}


}

$get_to = mysql_query("SELECT * FROM my_activity WHERE to_user='$username'");
while($fetch2 = mysql_fetch_array($get_to)){
$id[$c] = $fetch2[0];
$get_to_user = mysql_query("SELECT from_user FROM my_activity WHERE id='$id[$c]'");
while($tuser = mysql_fetch_array($get_to_user)){
$user[$c] = $tuser[0];
$users_array[$id[$c]][$user[$c]]= $id[$c].".".$user[$c];
$c++;
}


}


This is what i get if i simply loop the array to get the result:

Code: [Select]
Array
(
    [6] => Array
        (
            [checkdate] => 6.checkdate
        )

    [25] => Array
        (
            [asdsadsad] => 25.asdsadsad
        )

    [7] => Array
        (
            [webuser] => 7.webuser
        )

    [9] => Array
        (
            [newuser] => 9.newuser
        )

    [10] => Array
        (
            [bot77un] => 10.bot77un
        )
)

I am trying to sort it by the ids 6,25,7,9,10 in DESC

Hi guys,
I'm just working on a script to get menu items from a database, sorted by a sort column. Each item needs to be checked to see if it has a parent, then paired with the parent.

Would it be best to get all of the items at once and pair them with PHP, or get the children of each item when as a separate array?

id label link parent sort 1 Home index.php 0 10 2 About about.php 0 20 3 Contact Us contact.php 2 10

Hi all,

I have a multi-dimensional array looking somewhat like the following:


Array
(
    [0] => Array
        (
            [id] => 853
            [title] => item 853
            [price] => 17.99            
            [createdtime] => yyyy-mm-dd 00:00:00 
        )

    [1] => Array
        (
            [id] => 854
            [title] => item 854
            [price] => 11.99            
            [createdtime] => yyyy-mm-dd 00:00:00 
        )
...


I need to re-order this array so that any items with the 'createdtime' within a month from todays date are at the top, followed by all of the other items in the original order.  I would usually amend the sql but I need to do this with the array.

What would be the best way to do this? I found array_multisort but im not too sure how to adapt this to my needs.

Thank you for any help with this!