What is the correct way to represent a float number in the exponent notation in PHP?

When representing a float number in the exponent notation in PHP, you can use the `sprintf` function with the `%e` format specifier. This allows you to format the float number in scientific notation with an exponent. Simply provide the float number as the argument to `sprintf` along with the `%e` format specifier to achieve the desired representation. 

$floatNumber = 123.45;
$exponentNotation = sprintf('%e', $floatNumber);
echo $exponentNotation;

Keywords

PHP float exponent notation scientific notation sprintf

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