PHP maintains two decimal places

The main content of this article is about keeping two decimal points in PHP, which has a certain reference value. Now I share it with everyone. Friends in need can refer to it.

I have been doing statistics recently. I have a lot of exposure to data about numbers.

uses three functions to retain N digits after the decimal. Next, I will briefly introduce the three functions:

1, number_format

echo number_format("5000000")."<br>";
echo number_format("5000000",2)."<br>";
echo number_format("5000000",2,",",".");

The main function of this function is to implement: thousandth grouping formatted data.

Output result

5,000,000
5,000,000.00
5.000.000,00

2, sprintf

$num = 123;
$data=sprintf("%.2f",$num);

echo $data;

The result is:

123.00

3, round

$num1 = 123.1267
$data1 = round($num1, 2);

$num2 = 123
$data2 = round($num2, 2);

echo $data1."<br>"
echo $data2

The result is:

123.13

123

If this function has less than two decimal points, it will not automatically help you Complete.

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