How can I format a float value to display a specific number of decimal places in PHP?

To format a float value to display a specific number of 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 display in the formatted output. Simply pass the float value and the desired number of decimal places as arguments to the number_format() function.

$floatValue = 123.456789;
$decimalPlaces = 2;

$formattedValue = number_format($floatValue, $decimalPlaces);
echo $formattedValue; // Output: 123.46