How can large arrays in PHP be efficiently sorted based on array keys?

When sorting large arrays based on array keys in PHP, it is important to use efficient sorting algorithms to minimize processing time. One way to achieve this is by using the `ksort()` function, which sorts an array by its keys in ascending order. This function is efficient for large arrays as it has a time complexity of O(n log n). 

// Sample large array to be sorted based on keys
$largeArray = [
    'b' => 2,
    'a' => 1,
    'd' => 4,
    'c' => 3
];

// Sort the large array based on keys
ksort($largeArray);

// Output the sorted array
print_r($largeArray);

Keywords

PHP array sorting keys efficiency

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