What are the best practices for handling variable assignments and calculations in PHP?

When handling variable assignments and calculations in PHP, it is important to use meaningful variable names, follow proper naming conventions, and ensure that calculations are accurate and efficient. It is also recommended to use comments to explain complex calculations for better code readability. 

// Assigning variables with meaningful names
$price = 10.99;
$quantity = 5;

// Calculating total cost
$totalCost = $price * $quantity;

// Displaying the result
echo "Total cost: $" . $totalCost;

Keywords

variable assignments calculations PHP functions error handling data types

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