multiple array to a single array php

Question

is it possible in php to change this array

Array
(
    [0] => Array
        (
            [image_name] => image1
        )

    [1] => Array
        (
            [image_name] => image2
        )

    [2] => Array
        (
            [image_name] => image3

        )

)

to this kind of array . in which their index names are same.

Array
(
    [image_name1] => image1
    [image_name2] => image2
    [image_name3] => image3 
)

The way you imagined it, is not possible. An array can have a single value for a single key. It cannot contain the image_name key multiple times. What would $array['image_name'] return? — Balázs Édes
– Balázs Édes, Commented Jun 17, 2014 at 16:36
You could make $arary['image_name'] an array of values, but the way you show in your example is not possible. — gen_Eric
– gen_Eric, Commented Jun 17, 2014 at 16:37
$flattened = array_column($oldArray, 'image_name'); as a quick way of flattening that array for PHP >= 5.5; but you must still have unique keys for the index — Mark Baker
– Mark Baker, Commented Jun 17, 2014 at 16:38
What's wrong with a simple enumerated index? Why do you need an associative index with incrementing numbers? — Mark Baker
– Mark Baker, Commented Jun 17, 2014 at 16:41

Giacomo1968 · Accepted Answer · 2014-06-17 16:39:20Z

1

Just use a foreach loop like this:

// Set a test array.
$test_array = array();
$test_array[] = array('image_name_1' => 'image1');
$test_array[] = array('image_name_2' => 'image2');
$test_array[] = array('image_name_3' => 'image3');

// Roll through the array & set a new array.
$new_array = array();
foreach($test_array as $parent_key => $parent_value) {
  foreach($parent_value as $child_key => $child_value) {
    $new_array[$child_key] = $child_value;
  }
}

// Dump the output for debugging.
echo '<pre>';
print_r($new_array);
echo '</pre>';

And the final results are:

Array
(
    [image_name_1] => image1
    [image_name_2] => image2
    [image_name_3] => image3
)

answered Jun 17, 2014 at 16:39

Giacomo1968

25.4k11 gold badges78 silver badges106 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

multiple array to a single array php

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related