Are there any best practices for utilizing the <=> operator in PHP code?

When using the <=> operator in PHP code, it is important to remember that it returns -1 if the left operand is less than the right operand, 0 if they are equal, and 1 if the left operand is greater than the right operand. To utilize this operator effectively, you can use it for sorting arrays or comparing values in a concise and readable manner. 

// Example of utilizing the &lt;=&gt; operator for sorting an array of numbers in ascending order
$numbers = [5, 2, 8, 1, 3];
usort($numbers, function($a, $b) {
    return $a &lt;=&gt; $b;
});
print_r($numbers);

Keywords

PHP spaceship operator comparison sorting null coalescing operator

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