How to convert php files to hexadecimal

How to convert php files to hexadecimal: 1. Create a PHP sample file; 2. Convert the file content to hexadecimal output through the "function fileToHex($file){...}" method That’s it.

#The operating environment of this article: Windows 7 system, PHP version 7.4, Dell G3 computer.

How to convert php files to hexadecimal?

Example of method of converting files to hexadecimal in php

The code is as follows:

<?php
/**
 * php 文件与16进制相互转换
 * Date: 2017-01-14
 * Author: fdipzone
 * Ver: 1.0
 *
 * Func
 * fileToHex 文件转16进制
 * hexToFile 16进制转为文件
 */
 
/**
 * 将文件内容转为16进制输出
 * @param String $file 文件路径
 * @return String
 */
function fileToHex($file){
 if(file_exists($file)){
 $data = file_get_contents($file);
 return bin2hex($data);
 }
 return &#39;&#39;;
}
 
/**
 * 将16进制内容转为文件
 * @param String $hexstr 16进制内容
 * @param String $file 保存的文件路径
 */
function hexToFile($hexstr, $file){
 if($hexstr){
 $data = pack(&#39;H*&#39;, $hexstr);
 file_put_contents($file, $data, true);
 }
}
 
// 演示
$file = &#39;test.doc&#39;;
 
// 文件转16进制
$hexstr = fileToHex($file);
echo &#39;文件转16进制<br>&#39;;
echo $hexstr.&#39;<br><br>&#39;;
 
// 16进制转文件
$newfile = &#39;new.doc&#39;;
hexToFile($hexstr, $newfile);
 
echo &#39;16进制转文件<br>&#39;;
var_dump(file_exists($newfile));
 
?>

Output:

文件转16进制
efbbbf3130e4b8aae4bfafe58da7e69291e28094e280943235e4b8aae4bbb0e58da7e8b5b7...
 
16进制转文件
boolean true

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