我正在做我自己的小项目，使用 PDO 将 UserCake（最新）转换为 OOP，我已经完成了很多功能。但是现在我已经在这个页面功能上停留了一段时间。因此，根据代码，假设读取 PHP 文件的根文件夹并将它们添加到数据库表（uc_pages）中（如果它们尚不存在）。如果数据库中存在根文件夹中不存在的页面，请从数据库中删除这些页面。
我完全没有错误，这有点有趣......但如果有人愿意帮我解决这个问题，我会发布代码。
页面.php
<?php
require_once("resources/database.php");
$website_pages = new dbPages($db);
// set number of records per page
$records_per_page = 6;
// calculate for the query LIMIT clause
$from_record_num = ($records_per_page * $page) - $records_per_page;
$website_pages->getPageFiles();
//Retrieve list of pages in root usercake folder
$website_pages->fetchAllPages();
//Retrieve list of pages in pages table
$creations = array();
$deletions = array();
//Check if any pages exist which are not in DB
foreach ($website_pages->getPageFiles() as $web_page){
if(!isset($website_pages->readOne()[$web_page])){
$creations[] = $web_page;
}
}
//Enter new pages in DB if found
if (count($creations) > 0) {
$website_pages->create($creations);
}
if (count($website_pages->fetchAllPages()) > 0){
//Check if DB contains pages that don't exist
foreach ($website_pages->readOne() as $web_page){
if(!isset($website_pages->fetchAllPages()[$web_page['page']])){
$deletions[] = $web_page['id'];
}
}
}
//Delete pages from DB if not found
if (count($deletions) > 0) {
$website_pages->delete($deletions);
}
//Update DB pages
$website_pages->readAll($from_record_num, $records_per_page);
// header settings
$page_url="pages.php?";
$page_title = "UNFINISHED: All pages";
include_once "./resources/header.php";
?>
<div class='container'>
<div class='page-header'>
<h1><?php echo"{$page_title}";?></h1>
</div>
</div>
<div class="jumbotron">
<div class="container">
<?php
// query products
$stmt = $website_pages->readAll($from_record_num, $records_per_page);
$num = $stmt->rowCount();
// display the products if there are any
if($num>0){
while ($row = $stmt->fetch(PDO::FETCH_ASSOC)){
extract($row);
echo "<div class='col-xs-12 col-md-6'>
<div class='btn-group btn-group-justified' role='group'
aria-label='Justified button group'>
<a href='page.php?id={$id}' class='btn btn-warning' role='button'>
<span class='glyphicon glyphicon-edit'></span> Edit</a>
</div>";
echo "
<div class='panel panel-primary'>
<div class='panel-heading'>
<h3 class='panel-title'>{$page_name}</h3>
</div>
<div class='panel-footer'>";
//Show public/private setting of page
if($private == 0){
echo "This page is Public";
}
else {
echo "This page is Private";
}
echo "</div></div></div>";
}
echo "</div>";
// needed for paging
$total_rows=0;
if($page_url=="pages.php?"){
$total_rows=$website_pages->countAll();
}
// paging buttons
include_once './resources/paging.php';
}
// tell the user there are no products
else{
echo "<div class=\"alert alert-danger alert-dismissable\">";
echo "<button type=\"button\" class=\"close\" data-
dismiss=\"alert\" aria-hidden=\"true\">×</button>";
echo "No pages found.";
echo "</div>";
}
echo "</div>";
?>
</div>
</div>
<?php require("./resources/footer.php")?>
数据库.php
<?php
class Database{
// specify your own database credentials
private $host = "###########";
private $db_name = "website";
private $username = "###########";
private $password = "###########";
public $conn;
// get the database connection
public function getConnection(){
$this->conn = null;
try{
$this->conn = new PDO(
"mysql:host=" . $this->host . ";dbname=" . $this->db_name,
$this->username, $this->password);
}catch(PDOException $exception){
echo "Connection error: " . $exception->getMessage();
}
return $this->conn;
}
}
// instantiate database and product object
$database = new Database();
$db = $database->getConnection();
require_once './resources/functions.php';
$website = new Configuration($db);
$website->readConfig();
?>
正在挣扎的functions.php部分
class dbPages {
// database connection and table names
private $conn;
private $table_name = "uc_pages";
private $table_name2 = "uc_permission_page_matches";
// object properties
public $id;
public $page_id;
public $permission_id;
public $page_name;
public $private;
public $pages;
public $row;
public function __construct($db){
$this->conn = $db;
}
//Retrieve a list of all .php files in root files folder
function getPageFiles() {
$directory = "";
$pages = glob($directory . "*.php");
//print each file name
foreach ($pages as $web_page){
$row[$web_page] = $web_page;
}
return $row;
}
//Fetch information on all pages
function fetchAllPages() {
$query = "SELECT
id,
page_name,
private
FROM
" . $this->table_name . " ";
// prepare query statement
$stmt = $this->conn->prepare( $query );
$stmt->execute();
while ($stmt->fetch(PDO::FETCH_ASSOC)){
$row[$web_page] = array(
'id' => $id, 'page_name' => $page_name, 'private' => $private);
}
if (isset($row)){
return ($row);
}
}
// read products
function readAll($from_record_num, $records_per_page){
// select query
$query = "SELECT
id,
page_name,
private
FROM
" . $this->table_name . "
ORDER BY
page_name ASC
LIMIT
?, ?";
// prepare query statement
$stmt = $this->conn->prepare( $query );
// bind variable values
$stmt->bindParam(1, $from_record_num, PDO::PARAM_INT);
$stmt->bindParam(2, $records_per_page, PDO::PARAM_INT);
// execute query
$stmt->execute();
// return values from database
return $stmt;
}
// used for paging products
public function countAll(){
$query = "SELECT COUNT(*) as total_rows
FROM " . $this->table_name . "";
$stmt = $this->conn->prepare( $query );
$stmt->execute();
$row = $stmt->fetch(PDO::FETCH_ASSOC);
return $row['total_rows'];
}
// used when filling up the update product form
function readOne(){
$query = "SELECT
id,
page_name,
private
FROM
" . $this->table_name . "
WHERE
page_name = ?
LIMIT
0,1";
$stmt = $this->conn->prepare( $query );
$stmt->bindParam(1, $this->id);
$stmt->execute();
$row = $stmt->fetch(PDO::FETCH_ASSOC);
$this->id = $row['id'];
$this->page_name = $row['page_name'];
$this->private = $row['private'];
}
// create product
function create($pages){
//write query
$query = "INSERT INTO
" . $this->table_name . "
SET
id = ?,
page_name = ?,
private = ?";
$stmt = $this->conn->prepare($query);
$stmt->bindParam(1, $this->id);
$stmt->bindParam(2, $this->page_name);
$stmt->bindParam(3, $this->private);
foreach($pages as $page_name){
if($stmt->execute()){
return true;
}else{
return false;
}
}
}
// delete the product
function delete($pages){
$query = "DELETE FROM " . $this->table_name . " WHERE id = ?";
$stmt = $this->conn->prepare($query);
$stmt->bindParam(1, $this->id);
foreach($pages as $id){
if($result = $stmt->execute()){
return true;
}else{
return false;
}
}
$query2 = "DELETE FROM " . $this->table_name2 . "
WHERE page_id = ?";
$stmt2 = $this->conn->prepare($query);
$stmt2->bindParam(1, $this->page_id);
foreach($pages as $id){
if($result = $stmt2->execute()){
return true;
}else{
return false;
}
}
}
}