PHP bin2hex() 函数

PHP bin2hex() 函数用于将 ASCII 字符串转换为十六进制值。

语法:

string bin2hex ( string $str )

示例1

<?php 
str ="Hello World!";
echo "Your ASCII character is: ".str;
echo "<br>"."By using 'bin2hex()' Method your hexadecimal value is: ".bin2hex($str); 
?>

输出：

Your ASCII character is:Hello World!
By using 'bin2hex()' Method your hexadecimal value is: 48656c6c6f20576f726c6421

注意：将一个字符串值转换为二进制数再转为十六进制。

示例2

<?php
str = "Hello world!";
echo "Your Hexadecimal Value is ".bin2hex(str) . "<br>";
echo pack("H*",bin2hex($str)) . "<br>";
?>

输出：

Your Hexadecimal Value is 48656c6c6f20776f726c6421
Hello world!

示例3

<?php
binary = "11111001";
echo "Your Binary Value is".binary."<br>";
hex = dechex(bindec(binary));
echo "Converted Binary to Hexadecimal : ".$hex;
?>

输出：

Your Binary Value is11111001
Converted Binary to Hexadecimal : f9