【帮分析】这样用OOP是错误的吗?PHP的一个OOP报错~
作用:根据指定ID返回数据(网址)
代码:
<?phpclass UrlPath{ protected $db = $GLOBALS['db']; //报错 protected $ecs = $GLOBALS['ecs']; //报错 <b>Parse error</b>: parse error, unexpected T_VARIABLE in <b>PHPDocument1</b> on line <b>6</b><br /> //表 goods public function Goods($goods_id) { $sql = "SELECT g.goods_id,c.file_dir,c.parent_id,c.is_show AS c_is_show,g.is_show AS g_is_show ". " FROM ".self::$ecs->table('goods')." g ". " LEFT JOIN ".self::$ecs->table('category')." c ON g.cat_id=c.cat_id ". " WHERE g.goods_id='$goods_id' "; $rs = self::$db->getRow($sql); $arr = array(); if(!empty($rs)) { $arr['savepath'] = ($rs['g_is_show'] == 1 && $rs['c_is_show'] == 1) ? '/product/'.($rs['file_dir'] ? $rs['file_dir']:$rs['cat_id']).'/'.$rs['goods_id'].'.html' : ''; $arr['remoteurl'] = '/goods.php?id='.$rs['goods_id']; } return $arr; } //表 category public function Category($cat_id,$page = 1) { $sql = "SELECT c.cat_id,c.file_dir,c.parent_id,c.is_show ". " FROM ".self::$ecs->table('category')." c ". " WHERE c.cat_id='$cat_id' "; $rs = self::$db->getRow($sql); $arr = array(); if(!empty($rs)) { $arr['savepath'] = $rs['is_show'] == 1 ? '/product/'.($rs['file_dir'] ? $rs['file_dir']:$rs['cat_id']).'/index'.($page > 0 ? '-'.$page:'').'.html':''; $arr['remoteurl'] = '/category.php?id='.$rs['cat_id'].'&page='.$page; } return $arr; } //表article public function Article($article_id) { $sql = "SELECT a.article_id,c.cat_id,c.file_dir,c.is_open AS c_is_open ". " FROM ".self::$ecs->table('article')." a ". " LEFT JOIN ".self::$ecs->table('article_cat')." c ON a.cat_id=c.cat_id ". " WHERE a.article_id='$article_id' "; $rs = self::$db->getRow($sql); $arr = array(); if(!empty($rs)) { $arr['savepath'] = $rs['is_open'] == 1 ? '/article/'.($rs['file_dir'] ? $rs['file_dir']:$rs['cat_id']).'/'.$rs['article_id'].'.html' : ''; $arr['remoteurl'] = '/article.php?id='.$rs['article_id']; } return $arr; } //表 public function ArticleCat($cat_id,$page = 1) { $sql = "SELECT c.cat_id,c.file_dir,c.parent_id ". " FROM ".self::$ecs->table('article_cat')." c ". " WHERE c.cat_id='$cat_id' "; $rs = self::$db->getRow($sql); $arr = array(); if(!empty($rs)) { $arr['savepath'] = '/article/'.($rs['file_dir'] ? $rs['file_dir']:$rs['cat_id']).'/index'.($page > 0 ? '-'.$page:'').'.html'; $arr['remoteurl'] = '/article_cat.php?id='.$rs['cat_id'].'&page='.$page; } return $arr; }}
用法:
$arr = UrlPath::Goods(1024);print_arr($arr);
另外:开头有一个报错,不能这样写? procted $db = $GLOBALS['db'];
提问:
一:我想使用UrlPath::Goods($goods_id) 这样的方式获得指定的网址和静态地址,
如何在“类” UrlPath 中不初始化这个类就可以使用公用的 $db 和 $ecs ?
二:我的这个写法是不是有点问题?~ 另外那里为什么会报错了?以前貌似可以这样写。?
回复讨论(解决方案)
类变量不能使用变量的值来声明,需要额外写一个架构函数__construct来赋值
楼上说的对。

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

Long URLs, often cluttered with keywords and tracking parameters, can deter visitors. A URL shortening script offers a solution, creating concise links ideal for social media and other platforms. These scripts are valuable for individual websites a

Following its high-profile acquisition by Facebook in 2012, Instagram adopted two sets of APIs for third-party use. These are the Instagram Graph API and the Instagram Basic Display API.As a developer building an app that requires information from a

Laravel simplifies handling temporary session data using its intuitive flash methods. This is perfect for displaying brief messages, alerts, or notifications within your application. Data persists only for the subsequent request by default: $request-

This is the second and final part of the series on building a React application with a Laravel back-end. In the first part of the series, we created a RESTful API using Laravel for a basic product-listing application. In this tutorial, we will be dev

Laravel provides concise HTTP response simulation syntax, simplifying HTTP interaction testing. This approach significantly reduces code redundancy while making your test simulation more intuitive. The basic implementation provides a variety of response type shortcuts: use Illuminate\Support\Facades\Http; Http::fake([ 'google.com' => 'Hello World', 'github.com' => ['foo' => 'bar'], 'forge.laravel.com' =>

The PHP Client URL (cURL) extension is a powerful tool for developers, enabling seamless interaction with remote servers and REST APIs. By leveraging libcurl, a well-respected multi-protocol file transfer library, PHP cURL facilitates efficient execution of various network protocols, including HTTP, HTTPS, and FTP. This extension offers granular control over HTTP requests, supports multiple concurrent operations, and provides built-in security features.

Do you want to provide real-time, instant solutions to your customers' most pressing problems? Live chat lets you have real-time conversations with customers and resolve their problems instantly. It allows you to provide faster service to your custom

The 2025 PHP Landscape Survey investigates current PHP development trends. It explores framework usage, deployment methods, and challenges, aiming to provide insights for developers and businesses. The survey anticipates growth in modern PHP versio
