What best practices should be followed when using the pow function in PHP for calculating square roots?

When using the pow function in PHP to calculate square roots, it is important to remember that the second argument should be 0.5 to calculate the square root. Using a different value will not give the correct result. It is also recommended to use the sqrt function specifically designed for calculating square roots for better accuracy and readability.

// Using pow function to calculate square root
$number = 16;
$squareRoot = pow($number, 0.5);
echo "Square root of $number is: $squareRoot";

// Using sqrt function to calculate square root
$number = 16;
$squareRoot = sqrt($number);
echo "Square root of $number is: $squareRoot";