How can the sqrt function be implemented in PHP to calculate a mathematical formula?

To implement the sqrt function in PHP to calculate a mathematical formula, you can simply use the built-in sqrt() function provided by PHP. This function takes a single parameter, the number for which you want to calculate the square root, and returns the square root of that number.

// Calculate the square root of a number
$number = 16;
$squareRoot = sqrt($number);

echo "The square root of $number is: $squareRoot";