How to replace array keys with predefined values

Question

Assuming that I have following situation:

I have an array like this:

$array = array(1 => "text1",2 => "text2", 3 => "Text3" , 4 => "Text4");

After some functions I receive a string which contains these values:

$string = "2,1,4,3"; // this values are dynamic

What I want to achieve is to sort that array ($array) in the string's order; so the result should be:

<--- some function --- > 
$result = array(2 => "text2",1=> "text1",4=>"Text4",3=>"Text3"));

Please don't tell me you are getting these dynamic values from a database. — NullUserException
– NullUserException, Commented Dec 2, 2011 at 23:40
no , this are randomly received by custom function .. thanks — Webdesign7 London
– Webdesign7 London, Commented Dec 3, 2011 at 11:37

Rylab · Accepted Answer · 2011-12-02 23:10:48Z

1

$keyArr = explode(',', $string);
$sortedArr = array();

foreach ($keyArr as $key)
{
    $sortedArr[$key] = $array[$key];
}

answered Dec 2, 2011 at 23:10

Rylab

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Comments

Kenaniah · Accepted Answer · 2011-12-02 23:17:15Z

1

Untested, but probably something like:

array_multisort(explode(",", $string), $array);

Keys may get lost though.

answered Dec 2, 2011 at 23:08

Kenaniah

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Jon · Accepted Answer · 2011-12-02 23:09:09Z

0

answered Dec 2, 2011 at 23:09

Jon

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