Home  >  Article  >  Backend Development  >  How to convert php string to hexadecimal

How to convert php string to hexadecimal

藏色散人
藏色散人Original
2020-10-22 09:20:112543browse

How to convert php string to hexadecimal: first find and open common.php; then add the strToHex function; finally use the strToHex function to convert the string to hexadecimal.

How to convert php string to hexadecimal

Recommended: "PHP Video Tutorial"

PHP string and hexadecimal conversion

I was working on a project today because I needed to call the interface of someone else’s website. As a result, I needed to perform hexadecimal encryption on the request and return time, so I checked the information on the Internet and made a conversion. Demo makes a record.

If used under TP, you can put the following functions in common.php

1. Encryption function

<?php
/**
*字符串转十六进制函数
*@pream string $str=&#39;abc&#39;;
*/
function strToHex($str){
$hex="";
for($i=0;$i<strlen($str);$i++)
$hex.=dechex(ord($str[$i]));
$hex=strtoupper($hex);
return $hex;
}
?>

2. Decryption function

<?php
/**
*十六进制转字符串函数
*@pream string $hex=&#39;616263&#39;;
*/
function hexToStr($hex){
$str="";
for($i=0;$i<strlen($hex)-1;$i+=2)
$str.=chr(hexdec($hex[$i].$hex[$i+1]));
return $str;
}
?>

The encryption and decryption conversion function uses the Demo example, which is written in a class for convenience.

<?php
class Test{
/**
*字符串转十六进制函数
*@pream string $str=&#39;abc&#39;;
*/
public function strToHex($str){
$hex="";
for($i=0;$i<strlen($str);$i++)
$hex.=dechex(ord($str[$i]));
$hex=strtoupper($hex);
return $hex;
}
/**
*十六进制转字符串函数
*@pream string $hex=&#39;616263&#39;;
*/
public function hexToStr($hex){
$str="";
for($i=0;$i<strlen($hex)-1;$i+=2)
$str.=chr(hexdec($hex[$i].$hex[$i+1]));
return $str;
}
}
<span style="white-space:pre"> </span>//测试Demo效果
$test = new Test();
$str = &#39;要加密的内容sxfenglei&#39;;
$data = $test->strToHex($str);
echo &#39;加密内容:要加密的内容sxfenglei <br>&#39;.$data.&#39;<hr>&#39;;
$output = $test->hexToStr($data);
echo &#39;解密内容:E8A681E58AA0E5AF86E79A84E58685E5AEB9737866656E676C6569 <br>&#39;.$output;
?>

Run result:

加密内容:要加密的内容sxfenglei
E8A681E58AA0E5AF86E79A84E58685E5AEB9737866656E676C6569
解密内容:E8A681E58AA0E5AF86E79A84E58685E5AEB9737866656E676C6569
要加密的内容sxfenglei

The above is the detailed content of How to convert php string to hexadecimal. For more information, please follow other related articles on the PHP Chinese website!

Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn