Home Backend Development PHP Tutorial 写了个遍历目录、批量替换文件内容的类解决思路

写了个遍历目录、批量替换文件内容的类解决思路

Jun 13, 2016 pm 01:42 PM
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写了个遍历目录、批量替换文件内容的类
之前有需要,就写了这个类。
功能:
1 遍历目录下的所有文件(可指定后缀名)
2 批量替换文件内容(正则、字符串)
3 批量替换文件后缀名
4 批量替换文件编码

使用例:

PHP code
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$dirExplorer = new DirExplorerClass();
$dirExplorer->getDirExplorer('D:/test1/test2/');                                  //遍历目录D:/test1/test2/
$dirExplorer->modifyFileBy_replace('aa','QQ','shift-jis','UTF-8','txt','TXT');    //将所有文件内容中的aa替换为QQ,文件编码从shift-jis转换为UTF-8,将所有txt的后缀名改为TXT

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类代码:
PHP code
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class DirExplorerClass{
    var $dirPath_array = array();//遍历文件结果集合

    function __construct(){
        //donothing
    }

    /*
    *  return a directory handle or die
        */
    private function openDir($dirPath_target) {
        if (is_dir($dirPath_target)) {
            return opendir($dirPath_target);
        }else {
            die("$dirPath_target is Not a Directory");
        }
    }

    /*
    *  close a directory handle
        */
    private function closeDir($dirHander) {
        closedir($dirHander);
    }

    /*
    *  遍历指定目录,返回其下的文件名集合
    *
    *  Parameters:
    *      1 dirPath:需要遍历的文件夹
    *      2 extension:只返回指定后缀名的文件 
    *  Return:
    *      遍历文件结果集合
        */
    function getDirExplorer($dirPath,$extension=''){
        $dirHander=$this->openDir($dirPath);
        while($fileName = readdir($dirHander)){
            if($fileName !='.' && $fileName !='..'){
                $path = $dirPath."/" . $fileName;
                if(is_dir($path)){
                    $this->getDirExplorer($path);
                }else{
                    if(isset($extension) && $extension != ''){
                        $fileExtension = end(explode('.',$fileName));
                        if($fileExtension != $extension){
                            continue;
                        }
                    }
                    $this->dirPath_array[]=$path;
                }
            }
        }
        $this->closeDir($dirHander);
        return $this->dirPath_array;
    }

    /*
    *  字符串替换文件内容(区别大小写)、编码、后缀名
    *
    *  Parameters:
    *      1 search:    需要替换的字符串 (数组可)
    *      2 replace:    替换后的字符串 (数组可)
    *      3 in_charset:    原编码
    *      4 out_charset:    新编码
    *      5 in_extension:    原后缀名
    *      6 out_extension:新后缀名
    *  Return:
    *      true or false
        */
    function modifyFileBy_replace($search, $replace, $in_charset='', $out_charset='', $in_extension='', $out_extension=''){
        /* input check */
        if(
            !isset($search) || !isset($replace) || 
            (strlen($in_charset)!=0 && strlen($in_charset)==0)  || (strlen($in_charset)==0 && strlen($in_charset)!=0) ||
            (strlen($in_extension)!=0 && strlen($out_extension)==0)  || (strlen($in_extension)==0 && strlen($out_extension)!=0)
        ){
            return false;
        }

        foreach($this->dirPath_array as $key=>$file) {
            $content = file_get_contents($file);//read contents
            $content = str_replace($search, $replace, $content);

            if(strlen($in_charset)!=0 && strlen($out_charset)!=0){
                /* change the encode */
                $this->changeCharset($in_charset, $out_charset, 1, $content);
            }

            unlink($file);

            if(strlen($in_extension)!=0 && strlen($out_extension)!=0){
                /* change file's extension */
                $this->changeExtension($in_extension, $out_extension, 1, $file);
            }

            file_put_contents($file, $content);
            unset($content);

            /* 更新遍历文件名结果集 */
            $this->dirPath_array[$key] = $file;
        }
        return true;
    }

    /*
    *  字符串替换文件内容(忽略大小写)、编码、后缀名
        */
    function modifyFileBy_ireplace($search, $replace, $in_charset='', $out_charset='', $in_extension='', $out_extension=''){
        //不贴了 和上面的modifyFileBy_replace一样 只是用str_ireplace替换而已
    }

    /*
    *  正则替换文件内容(忽略大小写)、编码、后缀名
    *
    *  Parameters:
    *      1 search:    需要替换内容的正则表达式
    *      2 replace:    替换后的字符串
    *      3 in_charset:    原编码
    *      4 out_charset:    新编码
    *      5 in_extension:    原后缀名
    *      6 out_extension:新后缀名
    *  Return:
    *      true or false
        */
    function modifyFileBy_regex($search, $replace, $in_charset='', $out_charset='', $in_extension='', $out_extension=''){
        /* input check */
        if(
            !isset($search) || !isset($replace) || 
            (strlen($in_charset)!=0 && strlen($in_charset)==0)  || (strlen($in_charset)==0 && strlen($in_charset)!=0) ||
            (strlen($in_extension)!=0 && strlen($out_extension)==0)  || (strlen($in_extension)==0 && strlen($out_extension)!=0)
        ){
            return false;
        }

        if(preg_match('!([a-zA-Z\s]+)$!s', $search, $match) && (strpos($match[1], 'e') !== false)) {
            /* remove eval-modifier from $search */
            $search = substr($search, 0, -strlen($match[1])) . preg_replace('![e\s]+!', '', $match[1]);
        }

        foreach($this->dirPath_array as $key=>$file) {
            $content = file_get_contents($file);//read contents
            $content = preg_replace($search, $replace, $content);

            if(strlen($in_charset)!=0 && strlen($out_charset)!=0){
                /* change the encode */
                $this->changeCharset($in_charset, $out_charset, 1, $content);
            }

            unlink($file);

            if(strlen($in_extension)!=0 && strlen($out_extension)!=0){
                /* change file's extension */
                $this->changeExtension($in_extension, $out_extension, 1, $file);
            }

            file_put_contents($file, $content);
            unset($content);

            /* 更新遍历文件名结果集 */
            $this->dirPath_array[$key] = $file;
        }
        return true;
    }

    /*
    *  变换编码
    *
    *  Parameters:
    *      1 in_charset:    原编码
    *      2 out_charset:    新编码
    *      3 flag:        0对遍历得到的文件转换编码 1对指定内容转换编码
    *      4 content:    仅在flag为1时使用
    *  Return:
    *      true or false
        */
    function changeCharset($in_charset='', $out_charset='', $flag=0, &$content=''){
        /* input check */
        if (strlen($in_charset)==0 || strlen($out_charset)==0){
            return false;
        }

        if($flag == 0){
            /* 对遍历得到的文件转换编码 */
            foreach($this->dirPath_array as $file) {
                $content = file_get_contents($file);//read contents
                /* change the encode */
                $content = iconv($in_charset, $out_charset, $content);
                unlink($file);
                file_put_contents($file, $content);
                unset($content);
            }
        }else{
            /* 对指定内容转换编码 */
            if(strlen($content) != 0){
                $content = iconv($in_charset, $out_charset, $content);
            }
        }
        return true;
    }

    /*
    *  变换后缀名
    *
    *  Parameters:
    *      1 in_extension:        原后缀名
    *      2 out_extension:    新后缀名
    *      3 flag:            0对遍历得到的文件变换后缀名 1对指定文件名变换后缀名
    *      4 fileName:        仅在flag为1时使用
    *  Return:
    *      true or false
        */
    function changeExtension($in_extension='', $out_extension='', $flag=0, &$fileName=''){
        /* inout check */
        if(strlen($in_extension)==0 || strlen($out_extension)==0){
            return false;
        }

        if($flag == 0){
            /* 对遍历得到的文件变换后缀名 */
            foreach($this->dirPath_array as $key=>$file) {
                /* change file's extension */
                $tmp = explode('.',$file);
                $nowExtension = array_pop($tmp);
                if($nowExtension == $in_extension){
                    $content = file_get_contents($file);//read contents
                    unlink($file);
                    $file = implode('.',$tmp).'.'.$out_extension;
                    file_put_contents($file, $content);
                    unset($content);
                }
                /* 更新遍历文件名结果集 */
                $this->dirPath_array[$key] = $file;
            }

        }else{
            /* 对指定文件名变换后缀名 */
            if(strlen($fileName) != 0){
                $tmp = explode('.',$fileName);
                $nowExtension = array_pop($tmp);
                if($nowExtension == $in_extension){
                    $fileName = implode('.',$tmp).'.'.$out_extension;
                }
            }
        }
        return true;
    }

}


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