CODEWITHSUNDEEP
phparrays
user2450639
user2450639

Reputation: 306

Array Combine function with duplicated values (preserved keys)

I have two arrays, one array in the code is representing title(simple string), and the other one is email(simple string also). This two arrays will always be the same, and I need to create key value pairs of them.

[
    $email => $title
]

So, my $email array looks like this:

Array
(
    [0] => [email protected]
    [1] => [email protected]
    [2] => [email protected]
)

And my $tile array looks like this:

Array
(
    [0] => Distributor
    [1] => Internal
    [2] => Agency
)

So I need this two arrays to be:

Array
(
    [[email protected]] => Distributor
    [[email protected]] => Internal
    [[email protected]] => Agency
)

In the beginning I was using the array_combine, but when this duplicated email values occurred my code broke. I could not find good solution at this point. I tried to manipulate the arrays with this function from the php manual:

function array_combine_($keys, $values)
{
    $result = array();
    foreach ($keys as $i => $k) {
        $result[$k][] = $values[$i];
    }
    array_walk($result, create_function('&$v', '$v = (count($v) == 1)? array_pop($v): $v;'));
    return    $result;
}

But it is deprecated and it does not work. I appreciate any help with this issue.

Upvotes: 0

Views: 43

Answers (1)

Rakesh Jakhar
Rakesh Jakhar

Reputation: 6388

you cannot have multiple of the same key in an associative array.

You can use the values as the keys and keys as values 

$keys = ['[email protected]','[email protected]','[email protected]'];
$values = ['Distributor','Internal','Agency'];
$res = array_combine($values, $keys);

Output

Array
(
 [Distributor] => [email protected]
 [Internal] => [email protected]
 [Agency] => [email protected]
)

Or you can add something to make them unique like the index number and later on remove that index number

$keys = ['[email protected]','[email protected]','[email protected]'];
$values = ['Distributor','Internal','Agency'];
$res = [];
array_walk($keys, function($v, $k) use ($values, &$res){
  $res[$v."-".$k] = $values[$k];
});

Output

Array
(
 [[email protected]] => Distributor
 [[email protected]] => Internal
 [[email protected]] => Agency
)

Here you can remove the -Index to use them.

Upvotes: 2

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