我正在访问Index.php中的数据库类。
签出文件：
db.php中
<?php namespace Blog\DB;
class DB {
/**
* Return db
* @var object
*/
private $db;
/**
* Results limit.
* @var integer
*/
public $limit = 5;
public function __construct($config){
$this->connect($config);
}
private function connect($config){
try{
if ( !class_exists('Mongo')){
echo ("The MongoDB PECL extension has not been installed or enabled");
return false;
}
$connection= new \MongoClient($config['connection_string'],array('username'=>$config['username'],'password'=>$config['password']));
return $this->db = $connection->selectDB($config['dbname']);
}catch(Exception $e) {
return false;
}
}
/**
* get one article by id
* @return array
*/
public function getById($id,$collection){
// Convert strings of right length to MongoID
if (strlen($id) == 24){
$id = new \MongoId($id);
}
$table = $this->db->selectCollection($collection);
$cursor = $table->find(array('_id' => $id));
$article = $cursor->getNext();
if (!$article ){
return false ;
}
return $article;
}
/**
* get all data in collection and paginator
*
* @return multi array
*/
public function get($page,$collection){
$currentPage = $page;
$articlesPerPage = $this->limit;
//number of article to skip from beginning
$skip = ($currentPage - 1) * $articlesPerPage;
$table = $this->db->selectCollection($collection);
$cursor = $table->find();
//total number of articles in database
$totalArticles = $cursor->count();
//total number of pages to display
$totalPages = (int) ceil($totalArticles / $articlesPerPage);
$cursor->sort(array('saved_at' => -1))->skip($skip)->limit($articlesPerPage);
//$cursor = iterator_to_array($cursor);
$data=array($currentPage,$totalPages,$cursor);
return $data;
}
/**
* Create article
* @return boolean
*/
public function create($collection,$article){
$table = $this->db->selectCollection($collection);
return $result = $table->insert($article);
}
/**
* delete article via id
* @return boolean
*/
public function delete($id,$collection){
// Convert strings of right length to MongoID
if (strlen($id) == 24){
$id = new \MongoId($id);
}
$table = $this->db->selectCollection($collection);
$result = $table->remove(array('_id'=>$id));
if (!$id){
return false;
}
return $result;
}
/**
* Update article
* @return boolean
*/
public function update($id,$collection,$article){
// Convert strings of right length to MongoID
if (strlen($id) == 24){
$id = new \MongoId($id);
}
$table = $this->db->selectCollection($collection);
$result = $table->update(
array('_id' => new \MongoId($id)),
array('$set' => $article)
);
if (!$id){
return false;
}
return $result;
}
/**
* create and update comment
* @return boolean
*/
public function commentId($id,$collection,$comment){
$postCollection = $this->db->selectCollection($collection);
$post = $postCollection->findOne(array('_id' => new \MongoId($id)));
if (isset($post['comments'])) {
$comments = $post['comments'];
}else{
$comments = array();
}
array_push($comments, $comment);
return $postCollection->update(
array('_id' => new \MongoId($id)),
array('$set' => array('comments' => $comments))
);
}
public function receive($page,$collection){
$currentPage = $page;
$articlesPerPage = $this->limit;
//number of article to skip from beginning
$skip = ($currentPage - 1) * $articlesPerPage;
$table = $this->db->selectCollection($collection);
$cursor = $table->find();
//total number of articles in database
$totalArticles = $cursor->count();
//total number of pages to display
$totalPages = (int) ceil($totalArticles / $articlesPerPage);
$cursor->sort(array('saved_at' => -1))->skip($skip)->limit($articlesPerPage);
//$cursor = iterator_to_array($cursor);
$data=array($currentPage,$totalPages,$cursor);
return $data;
}
}
的index.php：
<?php
require_once 'auth.php';
include '../app1.php';
include '../config.php';
include '../db.php';
require_once '../vendor/markdown/Markdown.inc.php';
use Michelf\MarkdownExtra,
Michelf\Markdown;
$url_action = (empty($_REQUEST['action'])) ? 'logIn' : $_REQUEST['action'];
if (isset($url_action)) {
$action = new Auth;
if (is_callable(array($action,$url_action))) {
call_user_func(array($action,$url_action));
} else {
echo 'Function does not exist, request terminated';
}
}
if (is_array($_SESSION) &&$_SESSION['username'] ==UserAuth) {
$data = array();
$status = (empty($_GET['status'])) ? 'dashboard':$_GET['status'];
switch ($status) {
case 'create':
if ($_SERVER['REQUEST_METHOD'] === 'POST' ) {
$article = array();
$article['title'] = $_POST['title'];
$article['html'] = Markdown::defaultTransform($_POST['content']);
$article['content'] =$_POST['content'];
$article['saved_at'] = new MongoDate();
if ( empty($article['title']) || empty($article['content']) ) {
$data['status'] = 'Please fill out both inputs.';
}else {
// then create a new row in the table
$db->create('posts',$article);
$data['status'] = 'Row has successfully been inserted.';
}
}
$layout->view('admin/create', $data);
break;
case 'edit':
$id = $_REQUEST['id'];
$data['status'] =null;
if ($_SERVER['REQUEST_METHOD'] === 'POST' ) {
$article = array();
$article['title'] = $_POST['title'];
$article['html'] = Markdown::defaultTransform($_POST['content']);
$article['content'] =$_POST['content'];
$article['saved_at'] = new MongoDate();
if ( empty($article['title']) || empty($article['content']) ) {
$data['status'] = 'Please fill out both inputs.';
}else {
// then create a new row in the table
$db->update($id,'posts',$article);
$data['status'] = 'Row has successfully been update.';
}
}
$layout->view('admin/edit',array(
'article' => $db->getById($id,'posts'),
'status' => $data['status']
));
break;
case 'delete':
$id = $_GET['id'];
$status = $db->delete($id,'posts');
if ($status ==TRUE ) {
header("Location:index");
}
break;
default:
$currentPage = (isset($_GET['page'])) ? (int) $_GET['page'] : 1; //current page number
$data = $db->get($currentPage,'posts');
$layout->view('admin/dashboard',array(
'currentPage' => $data[0],
'totalPages' => $data[1],
'cursor' => $data[2],
));
break;
}
}
index.php位于文件夹中，即../admin/index.php，db.php位于网络目录的根文件夹中。
致命错误：调用未定义的方法DB :: get（）in 第82行的C：\ xampp \ htdocs \ admin \ index.php。
错误行：$ data = $ db-＆gt; get（$ currentPage，＆＃39; posts＆＃39;）;
答案 0 :(得分：0)
我无法在index.php中看到您创建调用数据库构造函数的$db对象的位置。
至少在代码的开头需要一行代码：
$db = new DB($config);
答案 1 :(得分：0)
嗯，我刚解决了。我没有在app1.php中调用构造函数并将其包含在索引中，而是直接在索引本身中调用它。现在它的工作。
感谢回复人员！