How to convert binary to floating point number in php

Method: 1. Use bindec() to convert binary to decimal number, syntax "bindec (binary value)"; 2. Use type conversion function floatval() or settype() to convert decimal number to floating point Type, syntax "floatval(number)" or "settype(number, "float")".

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

php will convert binary Method for floating-point number

In PHP, if you want to convert binary to floating-point number, you need to convert binary to decimal number first.

Implementation method:

1. Use the bindec() function to convert binary numbers into decimal numbers

bindec($binary_string) Function converts the binary number $binary_string to a decimal number.

<?php
header(&#39;content-type:text/html;charset=utf-8&#39;);   
$str="11000110011";
$num=bindec($str);
echo "11000110011转为的十进制数是：".$num;
?>

2. Use the type conversion function floatval() or settype() to convert the decimal number to a floating point type.

• floatval() function

The floatval() function is a function that specifically converts other types to floating point types. You can get the floating point value of a variable.

echo "<br>十进制数的数据类型为：";
var_dump($num);
$float= floatval($num);
echo "修改后的类型：";
var_dump($float);

• settype() function

echo "<br>原数据类型为：";
var_dump($num);
settype($num, "float");
echo "修改后的类型：";
var_dump($num);

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