How to convert binary to hexadecimal string in php

php method to convert binary to hexadecimal string: 1. Use base_convert() function, syntax "base_convert(binary number, 2,16)"; 2. Use bindec() and dechex() Function, syntax "dechex(bindec(binary number))".

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

php converts binary to 16 Method of converting strings:

Method 1: Use base_convert() function

base_convert() function to convert numbers between arbitrary bases.

base_convert($binary_string,$frombase,$tobase);

• $binary_string Required. Specifies the binary number to be converted.

• #$frombase Required. Specifies the original base of the number. Between 2 and 36 (inclusive). Numbers above decimal are represented by the letters a-z, such as a for 10, b for 11, and z for 35.​

• #$tobase Required. Specifies the base to be converted. Between 2 and 36 (inclusive). Numbers above decimal are represented by the letters a-z, such as a for 10, b for 11, and z for 35.

Example:

<?php
header("content-type:text/html;charset=utf-8");
$num1="0011";
$num2="11000110011";
echo "二进制 ".$num1." 转换成十六进制 ".base_convert($num1,2,16)."<br>"; 
echo "二进制 ".$num2." 转换成十六进制 ".base_convert($num2,2,16)."<br>"; 
?>

2. Use bindec() dechex() function

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

dechex($number) The function converts the decimal number $number into a hexadecimal string.

<?php
header("content-type:text/html;charset=utf-8");
$num1="0011";
$num2="11000110011";
echo "二进制 ".$num1." 转换成十六进制 ".dechex(bindec($num1))."<br>"; 
echo "二进制 ".$num2." 转换成十六进制 ".dechex(bindec($num2))."<br>"; 
?>

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