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php array interchange key value between two array – Php versions

I have 2 array like 

array (
  0 => 'END PIECE',
  1 => 'END PIECE',
  2 => 'END PIECE',
  3 => 'Title translation test 2',
  4 => 'Title translation test 2',
  5 => 'PIÈCE D'EXTRÉMITÉ'
);

and

array (
  0 => '47933',
  1 => '47935',
  2 => '47936',
  3 => '47929',
  4 => '47930',
  5 => '47933'
);

I want to make ONE array from this 2 array like 

array (
  'END PIECE' => '47933',
  'END PIECE' => '47935',
  'END PIECE' => '47936',
  'Title translation test' => '47929',
  'Title translation test' => '47930',
  'PIÈCE D'EXTRÉMITÉ' => '47933'
);

Is it possible? PHP 5.3 version required, I have tried this 

$c = array();
foreach($arr1 as $k => $val){
    $c[] = array($arr2[$k] => $val);
}

But it not works

Tags:

2

Answers


  1. 0

    You can use array_combine() function it is working (PHP 5, PHP 7) like the following 

    $a = array('green', 'red', 'yellow');
$b = array('avocado', 'apple', 'banana');
$c = array_combine($a, $b);

print_r($c);

    Output : 

    Array
(
    [green]  => avocado
    [red]    => apple
    [yellow] => banana
)
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  2. 0

    There are two ways to do this, the simple version will always have a subarray…

    $c = array();
foreach($arr1 as $k => $val){
    $c[$arr2[$k]][] = $val;
}

print_r($c);

    gives…

    Array
(
    [END PIECE] => Array
        (
            [0] => 47933
            [1] => 47935
            [2] => 47936
        )

    [Title translation test 2] => Array
        (
            [0] => 47929
            [1] => 47930
        )

    [PIÈCE D'EXTRÉMITÉ] => Array
        (
            [0] => 47933
        )

)

    If you only want duplicates to have sub arrays, then you need to check when adding a new item if the item is already set and already an array, adjusting as you go along…

    $c = array();
foreach($arr1 as $k => $val){
    if ( isset ($c[$arr2[$k]])) {
        if ( !is_array($c[$arr2[$k]]) )
            $c[$arr2[$k]] = [$c[$arr2[$k]]];
        $c[$arr2[$k]][] = $val;
    }
    else    {
        $c[$arr2[$k]] = $val;
    }
}
print_r($c);

    gives…

    Array
(
    [END PIECE] => Array
        (
            [0] => 47933
            [1] => 47935
            [2] => 47936
        )

    [Title translation test 2] => Array
        (
            [0] => 47929
            [1] => 47930
        )

    [PIÈCE D'EXTRÉMITÉ] => 47933
)

    As you can see, the PIÈCE D’EXTRÉMITÉ element is different in both cases.

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