How to get value of 1 associative array by using the value in another array?

Question

$gender = array ('boy', 'girl', 'trangender');
$shopping_data = array(
            'boy' => array(
                'accessory' => array('belt','wallet','watch'),
                'age' => array(20,45,50)
             ),
             'girl'=> array(
                'accessory' => array('hair-clip','wallet','watch'),
                'age' => array(30,40)
             )
);

how to get value "hair-clip" by using $gender?

You can get it like this by Hard coding echo $shopping_data[$gender[1]]['accessory'][0]; — lifeisbeautiful
– lifeisbeautiful, Commented Nov 21, 2018 at 7:08
You've asked this question yesterday. Still no logic explanation what's the connection between arrays. — u_mulder
– u_mulder, Commented Nov 21, 2018 at 7:18

Justin Schwimmer · Accepted Answer · 2018-11-21 07:19:16Z

1

Can you merge the two arrays at all?

I was thinking something along the lines of:

$gender = array_merge(array_flip($gender), $shopping_data);

echo '<pre>';
var_dump($gender['girl']['accessory'][0]);
echo '</pre>';
exit;

answered Nov 21, 2018 at 7:19

Justin Schwimmer

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Comments

Andreas · Accepted Answer · 2018-11-21 07:32:44Z

You mean loop and echo the items to each gender?

$gender = array ('boy', 'girl', 'trangender');
$shopping_data = array(
            'boy' => array(
                'accessory' => array('belt','wallet','watch'),
                'age' => array(20,45,50)
             ),
             'girl'=> array(
                'accessory' => array('hair-clip','wallet','watch'),
                'age' => array(30,40)
             )
);


foreach($gender as $gen){ // loop genders
    if(isset($shopping_data[$gen])){ // is gender in shopping_data
        echo $gen .":\n";
        foreach($shopping_data[$gen]["accessory"] as $acc){ // loop the accessories to the gender
            echo $acc . "\n";
        }
        echo "\n\n";
    }
}

output:

boy:
belt
wallet
watch


girl:
hair-clip
wallet
watch

https://3v4l.org/hjCrV

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