How can the spaceship operator be utilized in PHP for sorting arrays?

The spaceship operator (<=>) in PHP can be utilized for sorting arrays by providing a simple and concise way to compare values. It returns -1 if the left operand is less than the right, 0 if they are equal, and 1 if the left operand is greater than the right. This makes it easy to sort arrays in ascending or descending order based on a specific key or value. 

// Example of sorting an array of numbers in ascending order using the spaceship operator
$numbers = [4, 2, 8, 5, 1];
usort($numbers, function($a, $b) {
    return $a &lt;=&gt; $b;
});

print_r($numbers);

Keywords

spaceship operator sorting arrays PHP comparison function usort

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