What is the best way to round a number to 4 decimal places in PHP?

To round a number to 4 decimal places in PHP, you can use the number_format() function. This function allows you to specify the number of decimal places you want to round to. Simply pass in the number you want to round and set the decimal places parameter to 4. 

$number = 12.3456789;
$rounded_number = number_format($number, 4);
echo $rounded_number;

Keywords

PHP round number decimal places precision

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