How to delete all files in a directory on FTP with PHP

<?php
 // directory to delete
$directory = '/var/www/html/directory123/';
 // ftp connection
$connection = ftp_connect("host");
ftp_login($connection, "user", "password");
 // change the directory
ftp_chdir($connection, $directory);
 // list all files
$files = ftp_nlist($connection, ".");
foreach ($files as $file)
{
 // delete all files in directory
 ftp_delete($connection, $file);
}

There is no PHP function to delete all files in a directory.

You can list all files with ftp_nlist().

Use a loop to delete all files with ftp_delete().