PHP | ftp_connect() function

The ftp_connect() function is an inbuilt function in PHP which is used to create a new connection to the specified FTP server or Host. When connection is successful then only other FTP functions can be run against the server.

Syntax:

ftp_connect( $ftp_host, $ftp_port, $timeout );

Parameter: This function accepts three parameters as mentioned above and described below:



  • $ftp_host: It is required parameter and used to specify the host name or the ftp server to connect to. It can be domain name or IP address and these address must not prefixed with “ftp://” or must not have any slashes at the end of that url.
  • $ftp_port: It is optional parameter. It specifies the port number to connect to. If it is not provided then the default port number for FTP is used. The default ftp port number is 21.
  • $timeout: It is optional parameter. It specifies the timeout for all subsequent network operation. If this parameter is not provided then the default parameter is being used, which is 90 seconds.

Note: Timeout can be queried or changed anytime using ftp_get_option() and ftp_set_option() accordingly.

Return Value: It returns FTP stream on success or False on failure.

Note:

  • This function is available for PHP 4.0.0 and newer version.
  • The following examples cannot be run on online IDE. So try to run in some PHP hosting server or localhost with proper ftp server name.

Below programs illustrate the ftp_connect() function in PHP:

Example 1:

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<?php
  
// Connect to FTP server
$ftp_server = "localhost";
  
// Establish 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!";
      
    // Closeing  connection
    ftp_close($ftp_connection); 
}
  
?>

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Output:

Successfully connected to the ftp server!

Example 2: Connect to ftp server using port 21.

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<?php
  
// Connect to FTP server
$ftp_server = "localhost";
  
// Establish ftp connection 
$ftp_connection = ftp_connect($ftp_server, 21)
    or die("Could not connect to $ftp_server");
  
// Port number 21 is used as second parameter 
// in the function ftp_connect()
if( $ftp_connection ) {
    echo "Successfully connected to the ftp server!";
      
    // Closing  connection
    ftp_close( $ftp_connection ); 
}
  
?>

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Output:

Successfully connected to the ftp server!

Reference: https://www.php.net/manual/en/function.ftp-connect.php



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