What is the recommended method in PHP to sort an array based on a specific value in descending order?

To sort an array in PHP based on a specific value in descending order, you can use the `usort()` function along with a custom comparison function. This function will compare the specific value of each element in the array and sort them accordingly. By using `usort()` with a custom comparison function, you can achieve the desired sorting order. 

// Sample array to be sorted based on a specific value
$items = [
    ['name' => 'John', 'age' => 25],
    ['name' => 'Alice', 'age' => 30],
    ['name' => 'Bob', 'age' => 20]
];

// Custom comparison function to sort based on 'age' in descending order
usort($items, function($a, $b) {
    return $b['age'] - $a['age'];
});

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

Keywords

PHP array sort descending order specific value

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