Manipulate array foreach

Question

I have array 1 and it should be 2

Does anyone have an idea / solution?

Do i need foreach or for loop?

1.

Array
(
[0] => Array
    (
        [category_id] => 5
        [category] => Pages
    )

)

Must be:

Array
(
[0] => Array
    (
        [5] => Pages
    )

)

I have this but this doent work...

    for($x = 0; $x <= $counter; $x++){
        foreach ($Categories[$x] as $key => $value){
            echo $key.' '. $value.'<br>';
        }
        $test[$x]['category_id'] .= $Categories[$x]['category'];
    }

Thanks for all the help!

$arr[$i] = array($arr['category_id'] => $arr['category']); something like this in loop should work I am not sure what exactly you want to get. — Robert
– Robert, Commented May 14, 2013 at 6:40
@Robert Podwika Well i am getting 1 from the database and i want to manipulate it "must be" — Bas
– Bas, Commented May 14, 2013 at 6:43

mpyw · Accepted Answer · 2013-05-14 06:45:57Z

2

Code:

<?php

$arr = array(
    array(
        'category_id' => 5      ,
        'category'    => 'Pages',
    ),
);

$new = array();
foreach ($arr as $item) {
    $new[] = array(
        $item['category_id'] => $item['category']
    );
}

print_r($new);

Result:

Array
(
    [0] => Array
        (
            [5] => Pages
        )

)

answered May 14, 2013 at 6:45

mpyw

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Comments

Suhel Meman · Accepted Answer · 2013-05-14 06:52:49Z

2

$output=array();
foreach($array as $k=>$v)
{
  $output[$v['category_id']]=$v['category'];
}

echo "<pre />";
print_r($output);

Demo1

Demo 2

for multidimensinal result :

$output=array();
foreach($array as $k=>$v)
{
  $output[][$v['category_id']]=$v['category'];
}

echo "<pre />";
print_r($output);

edited May 14, 2013 at 6:52

answered May 14, 2013 at 6:45

Suhel Meman

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3 Comments

mpyw Over a year ago

I think @Bas requires multi-dementional result.

Suhel Meman Over a year ago

@CertaiN check answer for multidimensional result

Suhel Meman Over a year ago

@CertaiN : do not downvote any answer, if it doesn't belong to you or your question

Fabio · Accepted Answer · 2013-05-14 06:59:08Z

1

As you said you will need a foreach loop to manupulate you array.

Example

$array = array
(
'0' => array
    (
        'category_id' => '5',
        'category' => 'Pages'
    )
);  


$new_array = array();
foreach($array as $val)
{
     $new_array[$val['category_id']] = $val['category'];
}

var_dump($new_array);

this will output

array(1) { [5]=> string(5) "Pages" }

edited May 14, 2013 at 6:59

answered May 14, 2013 at 6:47

Fabio

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