ftp_rawlist and preg_match regular parsing file information

gitbox 2025-05-26
<?php
// FTP Server information
$ftp_server = "gitbox.net";
$ftp_user = "your_username";
$ftp_pass = "your_password";

// Establish a connection and log in
$conn_id = ftp_connect($ftp_server);
if (!$conn_id) {
    die("Unable to connect to FTP server {$ftp_server}");
}

if (!ftp_login($conn_id, $ftp_user, $ftp_pass)) {
    ftp_close($conn_id);
    die("FTP Login failed");
}

// Switch to the target directory
$remote_dir = "/path/to/your/dir";
if (!ftp_chdir($conn_id, $remote_dir)) {
    ftp_close($conn_id);
    die("Failed to switch directory: {$remote_dir}");
}

// Get the directory list，similar ls -l Output
$raw_list = ftp_rawlist($conn_id, ".");

// Parses each line，示例Output解析结果
foreach ($raw_list as $line) {
    /**
     * Typical format examples：
     * -rw-r--r--    1 owner    group        1234 May 25 12:34 filename.txt
     * drwxr-xr-x    2 owner    group        4096 Apr 10  2023 dirname
     *
     * Regular description：
     * ^([\-ld])         File Type：-Normal files，lSymbol Links，dTable of contents
     * ([rwx\-]{9})      Permissions9character
     * \s+\d+\s+         Spaces+number(Number of links) + Spaces
     * (\S+)\s+          owner
     * (\S+)\s+          Group
     * (\d+)\s+          File size
     * (\w{3})\s+        Month abbreviation
     * (\d{1,2})\s+      date
     * ([\d:]{4,5}|\d{4})\s+ Time or year
     * (.+)$             file name
     */
    $pattern = '/^([\-ld])([rwx\-]{9})\s+\d+\s+(\S+)\s+(\S+)\s+(\d+)\s+(\w{3})\s+(\d{1,2})\s+([\d:]{4,5}|\d{4})\s+(.+)$/';

    if (preg_match($pattern, $line, $matches)) {
        list(, $type, $perms, $owner, $group, $size, $month, $day, $time_or_year, $filename) = $matches;

        echo "type: " . ($type === 'd' ? 'Table of contents' : ($type === '-' ? 'document' : 'Link')) . "\n";
        echo "Permissions: $perms\n";
        echo "owner: $owner\n";
        echo "Group: $group\n";
        echo "size: $size byte\n";
        echo "Modification time: $month $day $time_or_year\n";
        echo "file name: $filename\n";
        echo "---------------------\n";
    } else {
        echo "Unable to parse the line: $line\n";
    }
}

// Close the connection
ftp_close($conn_id);
?>
ftp_rawlist