how to connect values and keys and then sort them?

[tastro]

how to connect juice and 1 and milk and 3 and cola and 2? and then sort it by the numbers from high to low?

 

$a=array('juice','milk','cola');

$a2=array('1','3','2');

 

 

[PinoyProgrammer]

$a1 = array ('juice', 'milk', 'cola');
$a2 = array ('1', '3', '2');
foreach ($a2 as $k => $v) $a3[$v] = $a1[$k];
sort ($a3);
print ($a3);

[tastro]

the order is not right.

 

now i get:

 

Array ( [0] => cola [1] => juice [2] => milk )

 

but it should order by $a2 numbers.

[PinoyProgrammer]

apologies. replace sort() with ksort().

 

Edit: Refer to this manual http://www.php.net/manual/en/ref.array.php

[Pikachu2000]

$a=array('juice','milk','cola');
$a2=array('1','3','2');

for( $i = 0; $i < count($a); $i++ ) {
$new[$a2[$i]] = $a[$i];
}

ksort($new);
print_r($new); // returns Array ( [1] => juice [2] => cola [3] => milk )

[tastro]

ok this works fine now... but some of my numbers are the same also like this:

 

$a=array('juice','milk','cola','sprite');

$a2=array('1','3','2','3');

 

and then the second key with the same number doesn't get printed out. :S

 

if you fix this then all will work perfect. :>

 

thank you both for the one before, both worked.

[Pikachu2000]

You can't have two array elements with the same index.

[tastro]

also to explain it more... i have a ranking system on my site... from rank 1 to rank 5. and some users have the same rank, also there are more users with rank 2 and 3... and i have to sort theyr posts by theyr rank.

 

'juice','milk','cola','sprite' <--- this are the post titles

 

'1','3','2','3' <--- and this are the rankings of the users who made the posts

[Pikachu2000]

Where are these values coming from? Are they stored in a database then retrieved for display?

[tastro]

yes... i get them as arrays from the database.

[Pikachu2000]

Why not group and sort them at that time instead of all this looping through arrays and changing indices, etc.?

[tastro]

don't know how to do this.

 

but i found another way myself right now:

 

$ar1=array('1','3','2','3');
$ar2=array('juice','milk','cola','sprite');
array_multisort($ar1,$ar2);
print_r($ar2);

 

i didn't knew that this function even exists: array_multisort();

 

but would like to see your idea as well please (maybe it's faster or uses less resources). thank you.