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2

Is it possible in PHP to do something like this? How would you go about writing a function? Here is an example. The order is the most important thing.

$customer['address'] = '123 fake st';
$customer['name'] = 'Tim';
$customer['dob'] = '12/08/1986';
$customer['dontSortMe'] = 'this value doesnt need to be sorted';

And I'd like to do something like

$properOrderedArray = sortArrayByArray($customer, array('name', 'dob', 'address'));

Because at the end I use a foreach() and they're not in the right order (because I append the values to a string which needs to be in the correct order and I don't know in advance all of the array keys/values).

I've looked through PHP's internal array functions but it seems you can only sort alphabetically or numerically. Would I have to implement some sort of sorting function with array_walk?

Thank you in advance!

flag	asked Dec 8 at 0:24 alex 2,813●1●16

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Eran Galperin · Accepted Answer · 12/8/2008 12:32:45 AM UTC

There you go:

function sortArrayByArray($array,$orderArray) {
    $ordered = array();
    foreach($orderArray as $key) {
    	if(array_key_exists($key,$array)) {
    		$ordered[$key] = $array[$key];
    		unset($array[$key]);
    	}
    }
    return $ordered + $array;
}

OIS · Answer 2 · 12/8/2008 5:27:22 AM UTC

function sortArrayByArray(array $toSort, array $sortByValuesAsKeys)
{
    $commonKeysInOrder = array_intersect_key(array_flip($sortByValuesAsKeys), $toSort);
    $commonKeysWithValue = array_intersect_key($toSort, $commonKeysInOrder);
    $sorted = array_merge($commonKeysInOrder, $commonKeysWithValue);
    return $sorted;
}

PHP - sort an array based on another array?

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