space ship opertaor in laravel

eship operator (<=>) is a comparison operator introduced in PHP 7. It is also known as the three-way comparison operator because it allows you to compare two expressions and returns -1, 0, or 1 based on the comparison result. The syntax for the spaceship operator is:

php
$result = $expr1 <=> $expr2;

In this syntax:

• $expr1 and $expr2 are the expressions or values you want to compare.
• $result will be assigned:
  • -1 if $expr1 is less than $expr2,
  • 0 if $expr1 is equal to $expr2, and
  • 1 if $expr1 is greater than $expr2.

Here are some examples of using the spaceship operator:

php
echo 5 <=> 10;  // Outputs -1 (5 is less than 10)
echo 10 <=> 5;  // Outputs 1 (10 is greater than 5)
echo 10 <=> 10; // Outputs 0 (10 is equal to 10)

The spaceship operator is particularly useful when sorting arrays or objects based on a certain property or key. It simplifies the sorting logic by returning the appropriate value for sorting purposes without requiring separate comparison conditions.

For example, in array sorting:

php
$array = [5, 3, 10, 2];
usort($array, function($a, $b) {
    return $a <=> $b;  // Sort in ascending order
});
print_r($array);  // Outputs [2, 3, 5, 10]

In this example, usort is used to sort the array in ascending order based on the spaceship opera