upload library

<?php

// Validate uploaded image

if ($gambar['error'] !== UPLOAD_ERR_OK) {

echo "Error uploading image. Please try again.";

} else {

$file_name = $gambar['name'];

$file_size = $gambar['size'];

$file_tmp = $gambar['tmp_name'];

$file_type = $gambar['type'];

$allowed_extensions = array("image/jpeg", "image/jpg", "image/png", "image/gif");

$max_file_size = 5 * 1024 * 1024; // 5MB

if (!in_array($file_type, $allowed_extensions)) {

echo "Invalid file type. Allowed types are JPG, JPEG, PNG, and GIF.";

} elseif ($file_size > $max_file_size) {

echo "File size is too large. Maximum file size is 5MB.";

} else {

// Generate a unique random file name

$unique_filename = uniqid() . '_' . $file_name;

// Move the uploaded image to a designated folder with the unique file name

$upload_path = "img/";

$destination = $upload_path . $unique_filename;

if (move_uploaded_file($file_tmp, $destination)) {

// Insert the data into the database

$query = "INSERT INTO books (judul, gambar, kategori, isi) VALUES ('$judul', '$destination', '$kategori', '$isi')";

mysqli_query($conn, $query);

if (mysqli_affected_rows($conn) > 0) {

header("Location: index.php");

} else {

echo "Error inserting data into the database.";

}

} else {

echo "Error moving the uploaded image.";

}

}

}