What is the difference between the functions round(), ceil(), and number_format() in PHP when dealing with decimal numbers?

The functions round(), ceil(), and number_format() in PHP are used to manipulate decimal numbers in different ways. round() is used to round a number to the nearest integer, ceil() is used to round a number up to the nearest integer, and number_format() is used to format a number with grouped thousands and decimal points. 

// Example of using round(), ceil(), and number_format() functions in PHP

$number = 12.3456;

// Round the number to the nearest integer
$roundedNumber = round($number);
echo "Rounded number: " . $roundedNumber . "\n";

// Round the number up to the nearest integer
$ceiledNumber = ceil($number);
echo "Ceiled number: " . $ceiledNumber . "\n";

// Format the number with grouped thousands and decimal points
$formattedNumber = number_format($number, 2);
echo "Formatted number: " . $formattedNumber . "\n";

Keywords

round ceil number_format decimal numbers PHP

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