Question

I have an array like this:

Array (
    0 => Array ( 
        'id' => 1,
        'name' => 'Hack n\' Slash',
        'slug' => 'hack-n-slash',
        'popular' => 0
    ),
    1 => Array ( 
        'id' => 2,
        'name' => 'FPP',
        'slug' => 'fpp',
        'popular' => 1
    ),  
    2 => Array ( 
        'id' => 3,
        'name' => 'RPG',
        'slug' => 'rpg',
        'popular' => 1
    )
)

What I want, is to split it into two arrays by key popular, so I’ll have a list like:

Popular:

• one
• two

Non-popular:

• one
• two

I tried using if/else like this:

foreach($genres as $genre) : 
    if($genre['popular'] == '1' : 
        echo $genre['name']; 
    endif; 
endforeach;

But then, when I added another statement (if($genre['popular'] == '0')), I couldn’t use it, since it was quite messy.

How can I achieve this?

Answer 1

A more generic solution, making use of PHP closures

$pages   = array(
        array(
            "id"      => 1,
            "name"    => "Hack n' Slash",
            "slug"    => "hack-n-slash",
            "popular" => 0
        ),
        array(
            "id"      => 2,
            "name"    => "FPP",
            "slug"    => "fpp",
            "popular" => 1
        ),
        array(
            "id"      => 3,
            "name"    => "RPG",
            "slug"    => "rpg",
            "popular" => 1
        )
    );

function myFilter($arrayValues,$key,$value) {
    return array_filter($arrayValues,
                        function($entry) use ($key,$value) {
                            return $entry[$key] == $value;
                        }
            );
}

$popular = myFilter($pages,'popular',1);
var_dump($popular);
$unpopular = myFilter($pages,'popular',0);
var_dump($unpopular);