重新组织php数组以擦除双重条目并合并其他条目

I'm facing to a problem : I'm given a json entry which is organized like that :

Array
(
    [0] => stdClass Object
        (
            [libelle] => Emploi
            [sousLibelle] => Réhabilitation professionnelle
        )

    [1] => stdClass Object
        (
            [libelle] => Emploi
            [sousLibelle] => Formations et aides à l'emploi
        )

    [2] => stdClass Object
        (
            [libelle] => Emploi
            [sousLibelle] => Emploi
        )
}

What I need to do is that :

Array
(
    [0] => stdClass Object
        (
            [libelle] => Emploi
            [sousLibelle][0] => Réhabilitation professionnelle
            [sousLibelle][1] => Formations et aides à l'emploi
            [sousLibelle][2] => Emploi
        )
)

I'm a bit lost here, some help would be nice.

thank you

From what I gather, the following loop is what you wish to do.

It will create a new array with the 'libelle' value as the key, and then remove duplicates.

$new_arr = array();
foreach($array as $val) {
    $new_arr[$val['libelle']][] = $val['sousLibelle'];
}
$new_arr = array_unique($new_arr);

Edit: Just a side note, json_decode for converting the array to a PHP array from a JSON array, and json_encode if you're producing the results back in a JSON array.

So for adding a new $key=>$value to your $result object, the following rules apply:

• If $result[$key] does not exist yet, create it and set it to $value.
• If $result[$key] exists and is an array, check if $value is in it. If not, add it ($result[$key][] = $value).
• If $result[$key] exists but is not an array, check if it is equal to $value. If not, create a new array with the original $result[$key] and the new value $value and assign it.

Did I get this correctly? Because the above translates quite straightforwardly into PHP. I could write it out for you, but I will leave the actual work to you :)