php如何加密图片,php实现图片加密解密，支持设置密码 （两年后版本！）
* by hello
* 84587470
*
* php 文件加密類，支持設置密碼，圖片，文件都可以！情侶們的福音！！！
**/
$from = 'C:\Users\Administrator\Desktop\t\test.png';$to = 'C:\Users\Administrator\Desktop\t\\';//加密
encrpty::en($from , $to , 'xxxx');//解密
encrpty::de('C:\Users\Administrator\Desktop\t\00f8fbb037778e31455211b4bdcb0874' , $to , 'xxxx');classencrpty
{const DS =DIRECTORY_SEPARATOR;const FILE = 1;const DIRECTORY = 2;const ALL = 3;/**
* 文件加密
*
* @param $from 源
* @param $to 保存位置
* @param string $slat 密碼
*
* @return array*/
public static function en($from , $to , $slat = 'xxx')
{$data =['sign' => 1 ,
'msg' => '' ,];try{$imgObj = new \SplFileInfo($from);$stram = implode('' ,['@@_____' ,
$slat ,
'@@_____' ,
$imgObj->getBasename() ,
'@@_____' ,]). (file_get_contents($imgObj->getRealPath()));$stram = gzcompress($stram);file_put_contents(static::replaceToSysSeparator($to) . md5($imgObj->getRealPath()) , ($stram));
}catch (\Exception $exception)
{$data['sign'] = 0;$data['data'] = $exception->getMessage();
}return $data;
}/**
* 解密
*
* @param $from 源
* @param $to 保存位置
* @param string $slat 密碼
*
* @return array*/
public static function de($from , $to , $slat = 'xxx')
{$data =['sign' => 1 ,
'msg' => '' ,];try{$imgObj = new \SplFileInfo($from);$stram = file_get_contents($imgObj->getRealPath());$stram = gzuncompress($stram);$reg = implode('' ,['#' ,
'^@@_____' ,
preg_quote($slat , '#') ,
'@@_____' ,
'(.*?)' ,
'@@_____' ,
'#i' ,]);preg_match($reg , $stram , $res);if(isset($res[1]))
{
self::mkdir_($to);$result = preg_replace($reg , '' , $stram);file_put_contents(static::endDS($to) . $res[1] , $result);
}else{$data['sign'] = 0;$data['data'] = '解密出錯';
}
}catch (\Exception $exception)
{$data['sign'] = 0;$data['data'] = $exception->getMessage();
}return $data;
}/**
* 自動為路徑后面加DIRECTORY_SEPARATORY
*
* @param string $path 文件夾路徑
*
* @return string*/
public static function endDS($path)
{return rtrim(rtrim(static::replaceToSysSeparator($path) , '/') , '\\') . static::DS;
}/**
* @param $path
*
* @return string*/
public static function replaceToSysSeparator($path)
{return strtr($path ,['\\' => static::DS ,
'/' => static::DS ,]);
}/**
* @param $path
*
* @return string*/
public static function replaceToUrlSeparator($path)
{return strtr($path ,['\\' => '/' ,]);
}/**
* 格式化字節大小
*
* @param number $size 字節數
* @param string |int $de
*
* @return string 格式化后的帶單位的大小*/
public static function byteFormat($size , $de = 2)
{$a = array("B" ,
"KB" ,
"MB" ,
"GB" ,
"TB" ,
"PB" ,);$pos = 0;while ($size >= 1024)
{$size /= 1024;$pos++;
}return round($size , $de) . " " . $a[$pos];
}/**
* 創建文件夾
*
* @param $path
* @param int $mode
*
* @return bool*/
public static function mkdir_($path , $mode = 0777)
{return !is_dir(($path)) ? mkdir(($path) , $mode , 1) : @chmod($path , $mode);
}/**
* 列出文件夾里文件信息
*
* @param $path
* @param callable|null $callback
* @param int $flag
*
* @return array*/
public static function listDir($path , callable $callback = null , $flag = self::ALL)
{$files =[];if(is_dir($path) && is_readable($path))
{try{$directory = new \FilesystemIterator ($path);$filter = new \CallbackFilterIterator ($directory , function($current , $key , $iterator) use ($flag) {switch ($flag)
{case static::FILE:
return $current->isFile();case static::DIRECTORY:
return $current->isDir();default:
return true;
}
});foreach ($filter as $info)
{if(is_callable($callback))
{$files[] = call_user_func_array($callback ,[$info ,]);
}else{$files[] = $info;
}
}
}catch (\Exception $e)
{$files =[];
}
}return $files;
}
}
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