How do you compare arrays using a PHP testing framework?

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To compare arrays using a PHP testing framework, you can use PHPUnit's built-in assertEquals method with the assertArrayEquals method. The assertEquals method checks if two values are equal, while assertArrayEquals specifically checks if two arrays have the same values in the same order.

For example, consider the two arrays below:

$array1 = [1, 2, 3, 4];
$array2 = [2, 3, 4, 1];

To compare these two arrays in a PHPUnit test, you can use the assertArrayEquals method like so:

public function testArraysAreEqual() {
    $array1 = [1, 2, 3, 4];
    $array2 = [2, 3, 4, 1];
    $this->assertArrayEquals($array1, $array2);
}

This test will fail because the values in the two arrays are not in the same order. To make the test pass, you can sort both arrays before comparing them using the sort function:

public function testArraysAreEqual() {
    $array1 = [1, 2, 3, 4];
    $array2 = [2, 3, 4, 1];
    sort($array1);
    sort($array2);
    $this->assertArrayEquals($array1, $array2);
}

Now the test will pass because both arrays have the same values in the same order.