How to remove the value after two decimal places in php

4 methods: 1. Use the "round(floating point number, 2)" statement to round the floating point number and retain two decimal places; 2. Use the "number_format(number, 2)" statement; 3. Use the "sprintf(" .2f", number)" statement; 4. Use the "floor(number*100)/100" statement.

The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

Use php to remove the value after two decimal places, In other words, use PHP to retain two decimal places.

PHP provides a variety of methods. Let’s take a look:

1. Use the round() function

round() function rounds floating point numbers.

Just set the second parameter of the function to 2 to preserve two decimal places.

<?php 
echo round(3.412,2)."<br>"; 
echo round(3.45648,2); 
?>

2. Use the number_format() function

The number_format() function is used to convert strings into numbers. It returns a formatted number on success, otherwise gives E_WARNING on failure.

To achieve rounding, if there is no decimal place, it will be automatically filled with 0 to the specified decimal place

<?php 
echo number_format(4.582,2)."<br>"; 
echo number_format(4.588,2)."<br>"; 
echo number_format(4.1,2); 
?>

3, Use the sprintf() function

to achieve rounding, and if it does not have decimal places, it will automatically use the specified character (specified 0) to fill in the specified decimal places

<?php 
echo sprintf("%01.2f", 5.228)."<br>"; 
echo sprintf("%01.2f", 5.224)."<br>"; 
echo sprintf("%01.2f", 5);
?>

4. Use the floor() function

to retain two decimal places without rounding.

The floor() function is rounded. For example, floor(4.66456) results in: 4, floor(9.1254) results in 9.

Therefore, to remove two decimal places, you need to multiply by 100 first, then round up, and then divide by 100, that is:

floor(数值*100)/100

Example:

<?php 
echo (floor(3.148*100)/100)."<br>"; 
echo (floor(3.142*100)/100); 
?>

Recommended learning: "PHP Video Tutorial"

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