discord_webhook_whmcs_ticket.php

<?php

if (!defined('WHMCS')) {
    die('You cannot access this file directly.');
}

add_hook('TicketOpen', 1, function ($vars) {
  
    // Your Discord webhook URL
    $discordWebhookUrl = "PUT_HERE";

    // Extract ticket information
    $ticketId = $vars['ticketid'];
    $deptId = $vars['deptid'];
    $userId = $vars['userid'];
    $subject = $vars['subject'];
    $message = $vars['message'];

    // WHMCS Admin Panel Ticket URL
    $ticketUrl = "https://WHMCS_ADDRESS/admin/supporttickets.php?action=view&id=$ticketId";

    // Format the message with a clickable link
    $discordMessage = [
	"content" => "**NEW TICKET:** [{$subject}]({$ticketUrl})\n\n> " . str_replace("\n", "\n> ", $message)
    ];


    // Initialize cURL
    $ch = curl_init($discordWebhookUrl);
    curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($discordMessage));
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

    // Execute cURL request
    $response = curl_exec($ch);
    $curlError = curl_error($ch);
    $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    curl_close($ch);

    // Log request and response
    $logFile = __DIR__ . '/discord_webhook_log.txt';
    $logData = "[" . date('Y-m-d H:i:s') . "]\n";
    $logData .= "Sent Data: " . json_encode($discordMessage, JSON_PRETTY_PRINT) . "\n";
    $logData .= "Response: $response\n";
    $logData .= "HTTP Code: $httpCode\n";
    $logData .= "cURL Error: $curlError\n";
    $logData .= "--------------------------------------\n";

    file_put_contents($logFile, $logData, FILE_APPEND);

    return $response;
});