PHP ftp_exec()函数介绍和示例解释

ftp_exec()函数是PHP中的内置函数, 用于在FTP服务器上执行命令。

语法如下：

ftp_exec( $ftp_connection, $command )

参数：此函数接受上述和以下所述的两个参数：

• $ ftp_connection：它是必填参数。它指定用于执行FTP命令或功能的现有FTP连接。
• $ command：它是必填参数。它指定要在成功建立连接的FTP服务器上执行的命令。

返回值：成功返回True, 失败返回False。

注意：

• 此功能可用于PHP 4.0.3和更高版本。
• 以下示例无法在在线IDE上运行。因此, 请尝试使用适当的ftp服务器名称, 用户名和密码在某些PHP托管服务器或localhost中运行。

例子：

<?php
  
// Connect to FTP server
// Use a correct ftp server
$ftp_server = "localhost" ;
  
// Use correct ftp username
$ftp_username = "username" ;
  
// Use correct ftp password corresponding
// to the ftp username
$ftp_userpass = "password" ;
  
// Command to be executed on FTP server
$command = "ls-al > test.txt" ;
   
// Establishing ftp connection 
$ftp_connection = ftp_connect( $ftp_server ) 
         or die ( "Could not connect to $ftp_server" );
  
if ( $ftp_connection ) {
     echo "successfully connected to the ftp server!" ;
      
     // Logging in to established connection with
     // ftp username password
     $login = ftp_login( $ftp_connection , $ftp_username , $ftp_userpass );
      
     if ( $login ) {
          
         // Checking whether logged in successfully or not
         echo "<br>logged in successfully!" ;
          
         // ftp_exec() executes the command 
         if (ftp_exec( $ftp_connection , $command )) {
             echo "<br>" . $command . " has been successfully executed." ;
         }
         else {
             echo "<br>Error while executing the command ." ;
         }
     }
     else {
         echo "<br>login failed!" ;
     }
      
     // Closeing  connection
     if (ftp_close( $ftp_connection )) {
         echo "<br>Connection closed Successfully!" ;
     } 
}
?>

输出如下：

successfully connected to the ftp server!
logged in successfully!
ls-al > test.txt has been successfully executed.
Connection closed Successfully!

参考： https://www.php.net/manual/en/function.ftp-exec.php

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