CODEWITHSUNDEEP
phparrays
sam
sam

Reputation: 253

Compare and replace value with another array

I have the following arrays:

$files = ['376840000000367020', '376840000000375036', '376840000000389001'];
$arr   = [];

foreach ($files as $key => $name) {
    $arr[] = $name;
}

$data = [
    '376840000000367020' => '5782',
    '376840000000375036' => '5783',
    '376840000000389001' => '5784',
];

print_r($arr);

This returns:

Array ( [0] => 376840000000367020 [1] => 376840000000375036.... )

I want to compare 2 arrays $arr and $data if the $key is found in $arr replace value with the $data, I'm trying get following output:

Array ( [0] => 5782 [1] => 5783 .... )

I have lots of data to compare so its not ideal to iterate over $arr inside foreach.

How would i go about doing this?

Upvotes: 0

Views: 80

Answers (3)

Mohammad Hamedani
Mohammad Hamedani

Reputation: 3354

You can use array_key_exists function to check a key exists in array:

<?php

$files = ['376840000000367020','376840000000375036','376840000000389001'];

$data = array(
    '376840000000367020'  =>  '5782',
    '376840000000375036'  =>  '5783',
    '376840000000389001'  =>  '5784',
);

$arr = [];
foreach($files as $key=>$name){
    if(array_key_exists($name, $data)) {
        $arr[] = $data[$name];
    }
}


print_r($arr);

Upvotes: 1

Robdll
Robdll

Reputation: 6255

Use array_map passing a callback that checks if the value exist in the 2nd array and return it's value in that case, or the item otherwise.

Upvotes: 0

Justinas
Justinas

Reputation: 43451

Iterate $files array and check if value is in $data

foreach ($files as &$file) {
   if (isset($data[$file])) {
       $file = $data[$file];
   }
}

Upvotes: 0

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