Sorting an array based on its value

Question

I have an Array, Sample:

$array {
 [0] {
   [something]=1;
   [something2]=2;
     } 
 [1] {
   [something]=2;
   [something2]=4;
     }
 [2] {
   [something]=5;
   [something2]=2;
     }
}

I want to order the array based on the key something;

So it will look like:

$array {
 [0] {
   [something]=5;
   [something2]=2;
     } 
 [1] {
   [something]=2;
   [something2]=4;
     }
 [2] {
   [something]=1;
   [something2]=2;
     }
}

well in the example it has been reversed but the array is ordered based on the value of the key something, if you have a look... — Max2Min
– Max2Min, Commented Jan 17, 2011 at 18:36

Linus Kleen · Accepted Answer · 2011-01-17 18:39:41Z

5

function compare($x, $y) {
    return $x['something'] - $y['something'];
}

usort($input_array, 'compare');

you need to use a usort() similar to the above.

edited Jan 17, 2011 at 18:39

Linus Kleen

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answered Jan 17, 2011 at 18:37

dqhendricks

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2 Comments

Aaron Hathaway Over a year ago

+1 cause I didn't know this. I just wrote an algorithm to sort it manually!

Max2Min Over a year ago

Thanks works great and saved alot of time, i was thinking of doing it the complicated way

Matt Lowden · Accepted Answer · 2011-01-17 18:51:39Z

0

Would the following suffice?

foreach($array as $key => $value){
    ksort( $array[$key] );
}

edited Jan 17, 2011 at 18:51

answered Jan 17, 2011 at 18:41

Matt Lowden

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2 Comments

Matt Lowden Over a year ago

Ah, sorry - I thought that's what you wanted to do; sort by the key 'something'.

Max2Min Over a year ago

np, but thanks for trying, The solution is posted by dqhendricks

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