Detailed explanation of PHP rounding function code

This article mainly introduces how to use PHP rounding-related functions, namely intval() function, round() function, ceil() function, floor() function. I hope it will be helpful to friends who need it. Helps!

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1. intval() function

Code example:

<?php
$num = 3.1415926;
$num2 = 3.6;
 
echo intval($num).&#39;<br>&#39;;
echo  intval($num2);
echo "<hr>";

Output:

3
3

2. round() function

Code example:

<?php
$num = 3.1415926;
$num2 = 3.6;
 
echo round($num).&#39;<br>&#39;;
echo  round($num2);
echo "<hr>";

Output:

3
4

3. ceil() function

<?php
$num = 3.1415926;
$num2 = 3.6;
 
echo ceil($num).&#39;<br>&#39;;
echo  ceil($num2);
echo "<hr>";

Output:

4
4

4. Floor() function

<?php
$num = 3.1415926;
$num2 = 3.6;
 
echo floor($num).&#39;<br>&#39;;
echo  floor($num2);

Output:

3
3

Summary of PHP rounding function:

intval() function means to obtain the integer value of a variable.

The round() function represents rounding of floating point numbers.

The ceil() function represents further rounding.

The floor() function represents rounding by rounding.

Related recommendations: "PHP Tutorial"

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