How select array by id value?

Question

how select one cell array by id key please ?7

array is countries.. every point is different, Identification numbers are random not to follow

my array is

$countries = array(
    array(
        'id'     => 4,
        'ar'     => 'أفغانستان',
        'ro'     => 'Afganistan',
        'ru'     => 'Афганистан',
        'zh'     => '阿富汗',
        'zh-tw'  => '阿富汗',
        'alpha2' => 'af',
        'alpha3' => 'afg'
    ),
    array(
        'id'     => 8,
        'ar'     => 'ألبانيا',
        'bg'     => 'Албания',
        'pt'     => 'Albânia',
        'ro'     => 'Albania',
        'alpha2' => 'al',
        'alpha3' => 'alb'
    ),..............

Answer 1

You can simply use this function:

function getById($arrays, $id){
    foreach($arrays as $array){
        if ($array['id'] == $id)
            return $array;
    }
    return null;
}

Usage sample:

echo implode(' - ', getById($countries, 8));

Results:

8 - ألبانيا - Албания - Albânia - Albania - al - alb

A better way is to use ids as keys of your array, so your array should be like: this:

$countries = array(
    4 => array(
        'ar'     => 'أفغانستان',
        'ro'     => 'Afganistan',
        'ru'     => 'Афганистан',
        'zh'     => '阿富汗',
        'zh-tw'  => '阿富汗',
        'alpha2' => 'af',
        'alpha3' => 'afg'
    ),
    8 => array(
        'ar'     => 'ألبانيا',
        'bg'     => 'Албания',
        'pt'     => 'Albânia',
        'ro'     => 'Albania',
        'alpha2' => 'al',
        'alpha3' => 'alb'
    ));

An example of access:

echo  $countries[8]['ar'];