PHP使用FTP转移文件夹以及子文件夹

来源：互联网发布：windows如何打开pages 编辑：程序博客网时间：2024/06/08 16:59

项目需要通过php调用ftp转移一个文件夹以及所有的内容到另一台服务器，刚听到这个需求，简直是一头雾水，可是php就是php，ftp被默认支持了。于是谷歌了一下ftp的知识，看了看php的api，有了个不怎么完美的解决方案。

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<?php
class FtpUpload {
    /**
     * 保存所有的目录
     * @var array
     */
    private $dirs;
    /**
     * 保存所有的文件
     * @var array
     */
    private $files;
    /**
     * FTP地址
     * @var string
     */
    private $host;
    /**
     * FTP用户名
     * @var string
     */
    private $usr;
    /**
     * FTP密码
     * @var unknown_type
     */
    private $pwd;
    /**
     * FTP链接
     * @var resource
     */
    private $conn_id;
    /**
     * FTP保存上传文件的目标目录
     * @var string
     */
    private $dst;
     
    /**
     * 构造
     * @param string $host
     * @param string $usr
     * @param string $pwd
     * @param string $prjname
     * @param string $dst
     */
    public function __construct($host,$usr,$pwd,$prjname,$dst) {
        //初始化
        $this->dirs = array ();
        $this->files = array ();
        $this->listDir ( $prjname );
        $this->host = $host;
        $this->usr = $usr;
        $this->pwd = $pwd;
        $this->dst = $dst;
        //ftp连接
        $this->conn_id = ftp_connect ( $this->host, 21 ) or die ("Cannot connect to host" );
        //ftp 登陆
        ftp_login ( $this->conn_id,$this->usr,$this->pwd ) or die ("Cannot login" );
        //开启passive模式
        ftp_pasv ( $this->conn_id, true );
    }
    /**
     * 析构，释放FTP链接
     */
    public function __destruct() {
        ftp_close ( $this->conn_id );
    }
    /**
     * 递归遍历要上传的文件夹，并分类文件夹与文件，分别存入对应的array
     * @param unknown_type $dirname
     */
    private function listDir($dirname) {
        $dir = opendir ( $dirname );
        while ( ($file = readdir ( $dir )) != false ) {
            if ($file =="." ||$file =="..") {
                continue;
            }
            if (is_dir ($dirname ."/" .$file )) {
                array_push ($this->dirs,$dirname ."/" .$file );
                $this->listDir ( $dirname ."/" .$file );
            }else {
                array_push ($this->files,$dirname ."/" .$file );
            }
        }
    }
     
    /**
     * 上传文件
     */
    public function upload() {
        $this->mkdirs ();
        //上传文件
        foreach ($this->filesas $f ) {
            //区分BINARY和ASCII，可以根据自己的需要微调
            if ($this->endsWith ( $f,".jpg" ) || $this->endsWith ( $f,".png" ) || $this->endsWith ( $f,".gif" ) || $this->endsWith ( $f,".exe" ) || $this->endsWith ( $f,".zip" ) || $this->endsWith ( $f,".swf" ) || $this->endsWith ( $f,".db" ) || $this->endsWith ( $f,".dll" ))
                $upload = ftp_put ( $this->conn_id,$f,$f, FTP_BINARY );
            else
                $upload = ftp_put ( $this->conn_id,$f,$f, FTP_ASCII );
        }
    }
     
    /**
     * 创建所需的文件夹
     */
    private function mkdirs() {
        ftp_mkdir ( $this->conn_id,$this->dst );
        ftp_chdir ( $this->conn_id,$this->dst );
        foreach ($this->dirsas $d ) {
            ftp_mkdir ( $this->conn_id,$d );
        }
    }
    /**
     * 判断目标字符串$haystack是否以指定字符串$needle结尾
     * @param string $haystack
     * @param string $needle
     * @return boolean
     */
    private function endsWith($haystack,$needle) {
        $length =strlen ($needle );
        if ($length == 0) {
            return true;
        }
        return (substr ($haystack, - $length ) === $needle);
    }
}

不知道为啥，在自己的ftp服务器运行良好，换做公司的服务器就悲剧的挂掉了，真心不解，难道是不同的ftp服务器支持的不一样？

于是出现了下面的版本。只是把传输文件放在了遍历文件夹的方法里面了，结果还是比较欣慰的。只是如果文件大了，速度很慢不说，还会出点问题。真正到服务器的文件比原先的文件少了那么一点点。迷茫了。有高手可以指点一下吗？

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<?php
class FtpUpload {
    private $host;
    private $usr;
    private $pwd;
    private $conn_id;
    private $dst;
     
    public function __construct($host,$usr,$pwd,$prjname,$dst) {
        $this->host = $host;
        $this->usr = $usr;
        $this->pwd = $pwd;
        $this->dst = $dst;
        //ftp连接
        $this->conn_id = ftp_connect ( $this->host, 21 ) or die ("Cannot connect to host" );
        //ftp 登陆
        ftp_login ( $this->conn_id,$this->usr,$this->pwd ) or die ("Cannot login" );
        //开启passive模式
        ftp_pasv ( $this->conn_id, true );
        $this->listDir ( $prjname );
    }
    public function __destruct() {
        ftp_close ( $this->conn_id );
    }
    private function listDir($dirname) {
        set_time_limit(0);
        //ftp_mkdir($this->conn_id, $dirname);
        $dir = opendir ( $dirname );
        while ( ($file = readdir ( $dir )) != false ) {
            if ($file =="." ||$file =="..") {
                continue;
            }
            if (is_dir ($dirname ."/" .$file )) {
                array_push ($this->dirs,$dirname ."/" .$file );
                echo $dirname ."/" .$file ."<br/>";
                echo "pwd /$dirname <br/>";
                ftp_chdir ( $this->conn_id,"/$dirname" );
                echo "mkdir $file <br/>";
                ftp_mkdir ( $this->conn_id,$file );
                $this->listDir ( $dirname ."/" .$file );
            }else {
                array_push ($this->files,$dirname ."/" .$file );
                echo "pwd /$dirname <br/>";
                ftp_chdir ( $this->conn_id,"/$dirname" );
                echo "put $file <br/>";
                if ($this->endsWith ( $file,".jpg" ) || $this->endsWith ( $file,".png" ) || $this->endsWith ( $file,".gif" ) || $this->endsWith ( $file,".exe" ) || $this->endsWith ( $file,".zip" ) || $this->endsWith ( $file,".swf" ) || $this->endsWith ( $file,".db" ) || $this->endsWith ( $file,".dll" ))
                    $upload = ftp_put ( $this->conn_id,$file,$dirname ."/" .$file, FTP_BINARY );
                else
                    $upload = ftp_put ( $this->conn_id,$file,$dirname ."/" .$file, FTP_ASCII );
                echo $dirname ."/" .$file ."<br/>";
            }
        }
    }
     
    private function endsWith($haystack,$needle) {
        $length =strlen ($needle );
        if ($length == 0) {
            return true;
        }
        return (substr ($haystack, - $length ) === $needle);
    }
}

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