CODEWITHSUNDEEP
phparraysforeachwhile-loopmatch
law
law

Reputation: 23

Matching keys from one array to another and creating a new array with their values?

Hi I have two arrays the first one looks like this:

array(  
    00000 => array(  
                 0 => 123,
                 1 => 456,
                 2 => 789,  
               )
    11111 => array(  
                 0 => 987,  
                 1 => 654,  
                 2 => 321,  
               )

My second array looks like this:

array(  
    00000 => 'apples',  
    11111 => 'bananas',
)

What am trying to do is match the keys from the 1st array with the keys in array 2nd then if they match take the values of key pair value array of the first array and make them keys for a brand new array and the values of the second array make them values for the brand new array. Something like this:

array(  
    123 => 'apples',  
    456 => 'apples',  
    789 => 'apples',  
    987 => 'bananas',  
    654 => 'bananas',  
    321 => 'bananas',  
)

Any help thanks!

Upvotes: 1

Views: 143

Answers (3)

law
law

Reputation: 23

Hi actually i did some research on php.net found a solution:

$array3 = array_keys($array1);  
$array4 = array_keys($array2);
$array5 = array_intersect($array3, $array4)
$array6 = array();  

foreach($array5 as $id) {  
    foreach($array1[$id] as $userId) {  
        $array6[$userId] = $array2[$id]  
    }  
}

Probably made more arrays than needed but this works and matches keys of both arrays before assigning values to new array.

Thanks to all that answered and helped!

Upvotes: 0

Padmanathan J
Padmanathan J

Reputation: 4620

Try this

$array = array(
    "00000" => array(
                 0 => 123,
                 1 => 456,
                 2 => 789,
    ),
    "11111" => array(
                 0 => 987,  
                 1 => 654,  
                 2 => 321,  
    )
);

$arr = array(  
    "00000" => 'apples',  
    "11111" => 'bananas',
);

$array3 = array();
foreach ($array as $keyas => $segs)
{
    foreach ($segs as $key)
   {
       $array3[$key] = $arr[$keyas];
   }     
}
 echo "<pre>";
 print_r($array3);
 unset($array3);

Output :

Array
(
    [123] => apples
    [456] => apples
    [789] => apples
    [987] => bananas
    [654] => bananas
    [321] => bananas
)

Upvotes: 0

yaron
yaron

Reputation: 1333

so im assuming u have 2 arrays (and you fixed second array to have unique keys)

$array3 = array (); //for the result
foreach ($array1 as $seg)
{

   foreach ($seg as $key)
   {
      $array3[$key] = $array2[$seg];
   }     
}

Upvotes: 1

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