What are the best practices for structuring mathematical calculations in PHP to ensure accurate results?

When performing mathematical calculations in PHP, it is important to follow best practices to ensure accurate results. One key practice is to use proper data types for numerical values, such as integers or floating-point numbers, depending on the precision required. Additionally, it is crucial to pay attention to the order of operations and use parentheses when necessary to avoid ambiguity. Finally, rounding errors can be minimized by using PHP's built-in functions for mathematical operations.

// Example of structuring mathematical calculations in PHP
$num1 = 10;
$num2 = 3;
$result = ($num1 + $num2) * 2; // Using parentheses to specify the order of operations
echo $result;