How can PHP be used to generate a random number?

To generate a random number in PHP, you can use the `rand()` function. This function takes two parameters, the minimum and maximum values between which you want to generate a random number. By calling `rand($min, $max)`, PHP will return a random integer between `$min` and `$max`.

$min = 1;
$max = 100;
$randomNumber = rand($min, $max);
echo "Random number between $min and $max: $randomNumber";