如何使用特定列名作为数组索引获取特定列的结果？

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

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']

Stick it in a getCurrency function. Then just pass in the one you want and the array:

<?php

$x = [
    [
            'id' => 1,
            'name' => 'Andorra',
            'code' => 'AD',
            'currency' => 'EUR',
            'phone' => '+376',
            'rate' => '5727.21',
        ],

[
        'id' => 2,
        'name' => 'United Arab Emirates',
        'code' => 'AE',
        'currency' => 'AED',
        'phone' => '+971',
        'rate' => '24341.9',
    ]
];

function getCurrency($code, $currenciesArray)
{
    foreach ($currenciesArray as $row) {
        if ($row['currency'] == $code) {
            return $row;
        }
    }

    return false;
}

$currency = getCurrency('EUR', $x);
echo $currency['rate'];  // outputs 5727.21

See it here https://3v4l.org/DnDQo

Try this function:

function formatArray($array){
   $return = [];
   foreach($array as $arrayItem){
     $return[$arrayItem['currency']] = $arrayItem;
   }
   return $return;
}

current array

    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
        )
    )

So using this function

print_r(formatArray($array));

arry will convert to this:

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

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

then you can try like this:

echo $array['EUR']['rate'];