What is the best approach to convert a given array into a new array with specific key-value pairs in PHP?

To convert a given array into a new array with specific key-value pairs in PHP, you can use a combination of array_map() and array_combine(). The array_map() function can be used to iterate over the original array and apply a callback function to each element, while array_combine() can be used to create a new array with the desired key-value pairs. 

<?php
// Given array
$originalArray = array("apple", "banana", "cherry");

// Define a callback function to create key-value pairs
function createKeyValuePair($item) {
    return array("fruit" => $item);
}

// Use array_map() to apply the callback function to each element
$newArray = array_map("createKeyValuePair", $originalArray);

// Use array_combine() to create a new array with the desired key-value pairs
$newArray = array_combine(range(1, count($newArray)), $newArray);

// Output the new array
print_r($newArray);
?>

Keywords

PHP array key-value pairs conversion manipulation

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