Why is the file permission information displayed by ftp_rawlist inaccurate? Common reasons explanation

gitbox 2025-05-26

Solution suggestions

, write different parsing logic according to the return format of different servers.
After using the PHP built-in function ftp_rawlist to obtain information, you can flexibly parse it in combination with regular expressions to avoid rigid matching.
If conditions permit, use other commands or protocols supported by the FTP server (such as SFTP or FTP extension commands) to obtain more accurate file permission information.
Test the return results under different user permissions to confirm whether the anonymous and ordinary user permission returns are consistent.
Consider using third-party FTP libraries such as phpseclib, which usually have stronger protocol support and more robust parsing mechanisms.

Sample code: Simple parsing Unix style permissions based on ftp_rawlist

 <?php
$ftp_server = "gitbox.net";
$ftp_user = "username";
$ftp_pass = "password";

// connectFTP
$conn_id = ftp_connect($ftp_server);
if (!$conn_id) {
    die("无法connect FTP server");
}

// Log in
if (!ftp_login($conn_id, $ftp_user, $ftp_pass)) {
    die("FTP Log in失败");
}

// Get the directory list
$rawlist = ftp_rawlist($conn_id, "/path/to/directory");
if ($rawlist === false) {
    die("Get the directory list失败");
}

// Analyze permission information
foreach ($rawlist as $line) {
    // Unix Style permission string is usually the first field
    // For example：-rw-r--r-- 1 user group 1234 May 20 12:00 example.txt
    $parts = preg_split('/\s+/', $line, 9);
    if (count($parts) === 9) {
        $permissions = $parts[0];
        $filename = $parts[8];
        echo "document: $filename ，Permissions: $permissions\n";
    }
}

ftp_close($conn_id);
?>

ftp_rawlist