PHP | ftp_set_option() Function

The ftp_set_option() function is an inbuilt function in PHP which is used to set runtime option for existing FTP Connection.

Syntax:

ftp_set_option( $ftp_connection, $option, $value )

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

• $ftp_connection: It is required parameter. It specifies the already existing FTP connection.
• $option: It is required parameter. It specifies the runtime option to set for existing FTP Connection. 
  Possible values of $option are: 
  • FTP_TIMEOUT_SEC: It returns the time out used for the network.
  • FTP_AUTOSEEK: By default it is enabled. It returns TRUE if this option is on otherwise return FALSE.
  • FTP_USEPASVADDRESS: When it set to FALSE, In response to the PASV command, PHP will ignore the IP address returned by the FTP server and instead use the IP address as a parameter of ftp_connect() function.
• $value: It is required parameter. It specifies the value of the option in to previous parameter.

Return Value:

• On Success: It returns TRUE i.e. option could be set.
• On failure: It returns FALSE. A Warning message is also generated.

Note:

• This function is available for PHP 4.2.0 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.

Example:

PHP

<?php

// Connect to FTP server

// Use a correct ftp server
$ftp_server = "localhost";

//use correct ftp username
$ftp_username="user";

// Use correct ftp password corresponding
// to the ftp username
$ftp_userpass="user";

// 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!<br>";

        // Printing is setting option successful
        // for current ftp connection
        echo ftp_set_option($ftp_connection,
                        FTP_TIMEOUT_SEC, 120);
    }
    else {
        echo "<br>login failed!";
    }

    // Closing  connection
    if(ftp_close($ftp_connection)) {
        echo "<br>Connection closed Successfully!";
    }
}

?>

Output:

successfully connected to the ftp server!
logged in successfully!
1
Connection closed Successfully!

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