How can the use of number_format() in PHP lead to truncating decimal places in calculations?

When using the number_format() function in PHP to format numbers with decimal places, it can lead to truncating decimal places in calculations because the function rounds the number to the specified decimal places. To avoid this issue, it's important to perform calculations before applying the number_format() function to ensure accuracy. 

// Perform calculations first and then apply number_format()
$number1 = 10.555;
$number2 = 20.333;
$sum = $number1 + $number2;

// Format the result with number_format()
$formatted_sum = number_format($sum, 2);

echo $formatted_sum; // Output: 30.89

Keywords

number_format PHP decimal places calculations truncating

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