Try something like this. This function accurately inserts into my database and also scrapes for SQL injection.
function addRestaurant() {
if(isset($_POST['submit'])) {
global $connection;
$name = $_POST['name'];
$address = $_POST['address'];
$city = $_POST['city'];
$state = $_POST['state'];
$zipcode = $_POST['zipcode'];
$googlemapslink = $_POST['googlemapslink'];
$restauranttype = $_POST['restauranttype'];
$website = $_POST['website'];
$logo = $_POST['logo'];
$sitelink = $_POST['sitelink'];
if ($googlemapslink == "") {
$googlemapslink = "https://youtu.be/dQw4w9WgXcQ";
}
if ($website == "") {
$website = "https://youtu.be/dQw4w9WgXcQ";
}
if ($logo == "") {
$logo = "https://youtu.be/dQw4w9WgXcQ";
}
$name = mysqli_real_escape_string($connection, $name);
$address = mysqli_real_escape_string($connection, $address);
$city = mysqli_real_escape_string($connection, $city);
$state = mysqli_real_escape_string($connection, $state);
$zipcode = mysqli_real_escape_string($connection, $zipcode);
$googlemapslink = mysqli_real_escape_string($connection, $googlemapslink);
$restauranttype = mysqli_real_escape_string($connection, $restauranttype);
$website = mysqli_real_escape_string($connection, $website);
$logo = mysqli_real_escape_string($connection, $logo);
$sitelink = mysqli_real_escape_string($connection, $sitelink);
$query = "INSERT INTO `restaurants` (Name, Address, City, State, ZipCode, GoogleMapsLink, Website, RestaurantType, RestaurantLogo, SiteLink) ";
$query .= "VALUES (";
$query .= "'$name', ";
$query .= "'$address', ";
$query .= "'$city', ";
$query .= "'$state', ";
$query .= "'$zipcode', ";
$query .= "'$googlemapslink', ";
$query .= "'$website', ";
$query .= "'$restauranttype', ";
$query .= "'$logo', ";
$query .= "'$sitelink'); ";
$filesite = "restaurants/" . $sitelink;
$file = "restaurants/menu.php";
$contents = file_get_contents($file);
file_put_contents($filesite, $contents);
$result = mysqli_query($connection, $query);
if(!$result) {
die("Query failed." . mysqli_error($connection));
} else {
echo "Record updated!";
}
}
}