PHP use FTP remote upload file class (Perfect solution of master-Slave file synchronization problem method) _php skills

PHP uses FTP to implement file upload code snippets:

<?php/** * FTP upload File class */class FTP {/** * Test server * * @var array/private $testServer = Array (' Host ' => ' IP ', ' Port ' =>, ' user ' => ' userName ', ' pwd ' => 

    ' Password ');       /** * Open and Log on server * * @param string $flag Server identification Test * @return Mixed * 0: Server Connection Failed * 1: Server Login failed * Resource Connection ID */Public Function openserver ($flag = ' Test ') {//Select server $conf 

      IG = $this->getserverconfig ($flag); 
      Connection Server $connect = Ftp_connect ($config [' Host '], $config [' Port ']); 

      if ($connect = = false) return 0; 

      Login Server if (!ftp_login ($connect, $config [' User '], $config [' pwd ']) return 1; 

      Turn on Passive mode, and the transfer of data is initiated by the client rather than the server starting FTP_PASV ($connect, true); 
    Returns the connection identification return $connect;
    /** * Creates the directory and navigates the directory to the directory * @param resource $connect Connection ID * @param string $dirPath directory path * @return Mixed * 2: Create directory Failed * True: Create directory Success/Public function MakeDir ($connect, $dirPath) { Process directory $dirPath = '/'. 
      Trim ($dirPath, '/'); 
      $dirPath = explode ('/', $dirPath); 
        foreach ($dirPath as $dir) {if ($dir = = ') $dir = '/'; To determine if the directory exists if (@ftp_chdir ($connect, $dir) = = False) {//To determine if the directory created a successful if (@ftp_mkDir $connect, $d 
          IR) = = False) {return 2; 
        @ftp_chdir ($connect, $dir); 
    } return true; 
      /** * Shutdown Server * * @param resource $connect connection ID/Public function closeserver ($connect) { 
    if (!empty ($connect)) ftp_close ($connect); /** * Upload File * * @param string $flag Server identification * @param string $local The local path of the uploaded file * @param strin       G $remote remote Path to upload file * @return int * 0: Server Connection Failed * 1: Server Login failed * 2: Failed to create directory *    3: Failed to upload file *   4: Upload success/Public function upload ($flag = ' Test ', $local, $remote) {//Connect and login to server $connect = $this- 
      >openserver ($flag); if (($connect = = 0) | | ($connect = = 1)) 

      return $connect; 
      Upload file directory processing $MDR = $this->makedir ($connect, DirName ($remote)); 

      if ($MDR = = 2) return 2; 

      Upload file $result = ftp_put ($connect, basename ($remote), $local, ftp_binary); 

      Shut down the server $this->closeserver ($connect); Returns the result return (! $result)? 
    3:4; 
     /** * Delete File * * @param string $flag Server Identity * @param string $remote remote path of file * @return int * 0: Server Connection Failed * 1: Server Login failed * 2: Delete failed * 3: Delete successful/public function delete ($flag = ' Test ', $remote) 
      {//Connect and log in to the server $connect = $this->openserver ($flag); if (($connect = = 0) | | ($connect = = 1)) 

      return $connect; 

      Delete $result = Ftp_delete ($connect, $remote); Shutting down the server
      $this->closeserver ($connect); Returns the result return (! $result)? 
    2:3;  
     /** * Read File * * @param string $flag Server identification * @param string $remote The remote path of the file * @return Mixed 
      * 0: Server Connection Failed * 1: Server login failed/Public function read ($flag, $remote) {//Connect and log on to server 
      $connect = $this->openserver ($flag); if (($connect = = 0) | | ($connect = = 1)) 

      return $connect; 

      Read $result = Ftp_nlist ($connect, $remote); 

      Shut down the server $this->closeserver ($connect); Returns the result foreach ($result as $key => $value) {if In_array ($value, Array ('. ', ' ... ')) unset ($result [$key]) 
      ; 
    Return Array_values ($result); /** * Get FTP Server Configuration * * @param string $flag server Identity Test * @return Array FTP Server Connection configuration * * PR 
      ivate function getserverconfig ($flag = ' Test ') {$flag = Strtolower ($flag); Test server if ($flag = = ' Test ') return $this->testserver; 
    Default back to test server return $this->testserver; }}?>

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