Edit File - ajax-contact.php

<?php
include "super_admin/config.php";

header('Content-Type: application/json');

$email   = mysqli_real_escape_string($link, $_POST['email'] ?? '');
$phone   = mysqli_real_escape_string($link, $_POST['phone'] ?? '');
$service = mysqli_real_escape_string($link, $_POST['service'] ?? '');

if (empty($email) || empty($phone) || empty($service)) {
    echo json_encode([
        "status" => "error",
        "message" => "All fields are required"
    ]);
    exit;
}

if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
    echo json_encode([
        "status" => "error",
        "message" => "Invalid email address"
    ]);
    exit;
}

if (!preg_match('/^[0-9]{10}$/', $phone)) {
    echo json_encode([
        "status" => "error",
        "message" => "Invalid phone number"
    ]);
    exit;
}

$sql = "INSERT INTO eltra_contact_form (email, phone, service)
        VALUES ('$email', '$phone', '$service')";

if (mysqli_query($link, $sql)) {
    echo json_encode(["status" => "success"]);
} else {
    echo json_encode([
        "status" => "error",
        "message" => mysqli_error($link)
    ]);
}

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