Merge arrays by suffix of keys PHP

✔ Recommended Answer

If you know the two arrays are the same size, and in the same order, you can use array_combine with array_keys.

$wanted_array = array_combine(array_keys($keys), $submitted_values);

Source: stackoverflow.com

Answered By: Don't Panic

Method #2

To merge two arrays in PHP based on a suffix of their keys, you can use a combination of the array_filter() and array_merge() functions.

Here's an example of how to do this:

php
// Define two arrays to merge
$array1 = [
    'name_first' => 'John',
    'name_last' => 'Doe',
    'email_address' => 'john.doe@example.com',
];

$array2 = [
    'address_street' => '123 Main St',
    'address_city' => 'Anytown',
    'address_state' => 'CA',
    'address_zip' => '12345',
];

// Define the suffix to use for the keys to merge
$suffix = '_address';

// Filter the keys in the first array to only include those with the suffix
$filteredArray1 = array_filter($array1, function ($key) use ($suffix) {
    return substr($key, -strlen($suffix)) === $suffix;
}, ARRAY_FILTER_USE_KEY);

// Merge the filtered array with the second array
$mergedArray = array_merge($filteredArray1, $array2);

// Combine the merged array with the original array, removing the keys with the suffix
$resultArray = array_merge(
    array_diff_key($array1, $filteredArray1),
    $mergedArray
);

// Output the resulting merged array
print_r($resultArray);

In this example, we define two arrays to merge ($array1 and $array2) and a suffix to use for the keys to merge ($suffix). We first filter the keys in the first array to only include those with the suffix, using array_filter() with a callback function that checks if the key ends with the suffix. We then merge the filtered array with the second array using array_merge(). Finally, we combine the merged array with the original array, removing the keys with the suffix using array_diff_key() and merging the result using array_merge(). The resulting merged array contains all the original keys and values, with the values from the second array replacing those from the first array for the keys with the suffix.