= 1) $error[]="That book already exists!";
if($_POST['title']==null || $_POST['author']==null || $_POST['bookid']==null) $error[]="Please fill in the whole form";
if(!is_numeric($_POST['bookid'])) $error[]="Book ID needs to be a number";
if (count($error)==0) {
echo "You successfully added a book";
}
}
if (isset($error) && count($error)!=0 && isset($_POST)) {
foreach ($error as $x) {
echo $x."
";
}
}
?>
Add books
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View booklist / delete books