How to remove decimal places in php

php method to remove decimal places: 1. Use the intval() function to get the integer value of the variable, the syntax "intval($number)"; 2. Use the floor() function to round down, the syntax " floor($number)”.

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

php removes decimal places Method

Method 1: Use the intval() function

The intval() function is used to obtain the integer value of a variable. Syntax format:

int intval ( mixed $var [, int $base = 10 ] )

• $var: The quantity value to be converted to integer.

• #$base: The base used for conversion.

  If base is 0, determine the base used by detecting the format of var:

  • If the string includes "0x" (or "0X") Prefix, use hexadecimal (hex); otherwise,

  • If the string starts with "0", use octal (octal); otherwise,

  • Decimal will be used.

The intval() function is often used to convert data types, converting string and floating-point type variables into integer types.

Example:Convert decimal to integer (remove decimal places)

<?php
header("Content-type:text/html;charset=utf-8"); 
$num = 123.456;
$int = intval($num);
echo &#39;变量 $int 的类型为：&#39;.gettype($int).&#39;<br>&#39;;
var_dump($int);
?>

Output result:

Method 2: Use the floor() function--round down

The floor() function rounds down to the nearest integer. Syntax format:

floor($number);

• $number: required. Specifies the value to be rounded down.

Example:Round decimals (remove decimal places)

<?php
header("Content-type:text/html;charset=utf-8"); 
$num = 123.456;
$int = floor($num);
echo &#39;变量 $int 的类型为：&#39;.gettype($int).&#39;<br>&#39;;
var_dump($int);
?>

Output result:

Supplement: Two other methods of decimal rounding

• Use the ceil() function--round up, if there is a decimal, add 1 to the integer part

<?php
header("Content-type:text/html;charset=utf-8"); 
$num = 123.456;
$int = ceil($num);
echo &#39;变量 $int 的类型为：&#39;.gettype($int).&#39;<br>&#39;;
var_dump($int);
?>

Output result:

• ##Use round() function--rounding

<?php
header("Content-type:text/html;charset=utf-8"); 
$num = 123.456;
$int = round($num);
echo &#39;小数值为：&#39;.$num.&#39;<br>&#39;;
echo &#39;取整后值为：&#39;.$int .&#39;<br>&#39;;
var_dump($int);

$num = 123.556;
$int = round($num);
echo &#39;小数值为：&#39;.$num.&#39;<br>&#39;;
echo &#39;取整后值为：&#39;.$int .&#39;<br>&#39;;
var_dump($int);
?>

Output results:



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