What is the best way to sort an array in PHP so that a specific key is always at the beginning and another key is always at the end?

When sorting an array in PHP, you can use a custom sorting function to ensure that a specific key is always at the beginning and another key is always at the end. One way to achieve this is by using the uasort() function, which allows you to define a custom comparison function that specifies the order of elements based on their keys. 

// Sample array with keys 'start', 'middle', and 'end'
$array = ['middle' => 'value', 'end' => 'value', 'start' => 'value'];

// Custom sorting function to place 'start' key at the beginning and 'end' key at the end
uasort($array, function($a, $b) {
    if ($a == 'start') {
        return -1;
    } elseif ($b == 'end') {
        return 1;
    } else {
        return 0;
    }
});

print_r($array);

Keywords

PHP array sorting array key usort custom sorting

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