如何使用特定列名作为数组索引获取特定列的结果？

Question

I have an array , I want to get result by passing currency parameter . E.g $array is the variable containing array.

I want to get by this way $array['EUR']['rate']

How can i get by this way. Please Help

Array
(
    [0] => Array
        (
            [id] => 1
            [name] => Andorra
            [code] => AD
            [currency] => EUR
            [phone] => +376
            [rate] => 5727.21
        )

[1] => Array
    (
        [id] => 2
        [name] => United Arab Emirates
        [code] => AE
        [currency] => AED
        [phone] => +971
        [rate] => 24341.9
    )
)

I want to get

Answer 1

foreach ($array as $currency) {
    if ($currency['currency'] == 'EUR') {
        echo $currency['rate'];
    }
}

You may want to format the array differently to be able to access data directly without looping. So you could use currency as key.

You can reformat the array like this:

$newArray = [];
foreach ($array as $currency) {
    $newArray[$currency['currency']] = $currency;
}

Then access $newArray['EUR']['rate']