How to convert integer to floating point type in php

php method to convert integers to floating point types: 1. Add the target type "(float)" enclosed in parentheses before the integer variable to be converted, the syntax is "integer variable (float)"; 2. Use the floatval() function with the syntax "floatval (integer variable)".

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

Method 1: In The variable to be converted is preceded by the target type "(float)" enclosed in parentheses

<?php
    header("Content-type:text/html;charset=utf-8");
    $int = 123;
    echo &#39;变量的原类型为：&#39;;
	  var_dump($int);
    $float = (float)$int;
    echo &#39;变量转换后的类型为：&#39;;
	  var_dump($float);
?>

Output:

Note:

When the variable type is cast by adding the target type enclosed in parentheses before the variable, the variable types allowed in the parentheses are as follows:

• (int), (integer): Convert to integer type;

• (bool), (boolean): Convert to Boolean type;

• (float), (double), (real): Convert to floating point type;

• (string): Convert to string type;

• (array): Convert to array type;

• (object): Convert to object type.

Method 2: Use floatval() function

<?php
    header("Content-type:text/html;charset=utf-8");
    $int = 547;
    echo &#39;变量的原类型为：&#39;;
    var_dump($int);
    $float = floatval($int);
    echo &#39;变量转换后的类型为：&#39;;
    var_dump($float);
?>

Output:

Description: floatval()

floatval - Get the floating point value of the variable

Syntax:

floatval ( mixed $var ) : float

Return The float value of variable var.

Parameter: var can be any scalar type. You cannot use floatval() with arrays or objects.

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