PHP | ftp_ssl_connect() Function

The ftp_ssl_connect() function is an inbuilt function in PHP which opens a secure SSL-FTP connection. FTP functions can be run against the server while the connection is open. It opens an explicit SSL-FTP connection to the host specified in parameter. It will succeed even if the server’s certificate is invalid or is not configured for SSL-FTP. 

Syntax:

ftp_ssl_connect($host, $port, $timeout);

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

• $host: It is required parameter. It specifies the FTP server address. It can be a domain address or an IP address. This parameter shouldn’t be prefixed with “ftp://” or shouldn’t have any trailing slashes.
• $port: It is an optional parameter. It specifies the port to connect to. If no port is provided then default port is used i.e. 21.
• $timeout: It is also an optional parameter. It specifies the timeout for network operations. If not provided then default value is passed which is 90 seconds.

Return Value: It returns SSL-FTP stream on success or false on failure.

Note:

• This function is available on 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.
• This function is only available if both the ftp module and the OpenSSL support is built statically into PHP.

Below programs illustrate the ftp_ssl_connect() function in PHP:

Example 1:

PHP

<?php

// Use ftp_ssl_connect() function to
// check Connection
$conn = ftp_ssl_connect("ftp.testftp.com")
    or die("Could not connect");

echo "Connection established successfully";

?>

Output:

Connection established successfully

Example 2: This example uses ftp_ssl_connect() function to logging in using SSL-FTP Connection  

PHP

<?php

// Setting up basic SSL connection

// User IP address to which you
// want to connect to
$ftp_server = "8.8.8.8";

// Logging in in the established ftp connection.
$ftp_conn = ftp_ssl_connect($ftp_server)
    or die("Could not connect to $ftp_server");

// Use your username
$ftp_username = "your_username";

// Use your password
$ftp_userpass = "your_password";

$login = ftp_login($ftp_conn, $ftp_username, $ftp_userpass);

if( $login ) {
    echo "Successfully logged in with ".$ftp_server;
}
else {
    echo "Log in failed";
}

// Closing SSL connection
ftp_close($ftp_conn);

?>

Output:

Successfully logged in with 8.8.8.8

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