search
HomeBackend DevelopmentPHP Tutorialdiscuz的插件是怎么操作数据库的?

add.inc.php:

<?phpif(!defined('IN_DISCUZ')) {        exit('Access Denied');}$q1 = $_REQUEST['q1']; $addtime = time();	$insert_array = array(			'baankid'=>$q1,	);	$cone = DB::insert('pre_xyk',$insert_array);?> 


echo $q1;  这样是有输出的,但是怎么写不进数据的?

DZ的插件是怎么操作数据库的?

add.inc.php怎么写才正确?先谢谢了!


回复讨论(解决方案)

require './source/class/class_core.php';C::app()->init();$insert_array = array(	'classname'=>'test',	'uid'=>1,	'dateline'=>time());if(DB::insert('home_class',$insert_array)){	echo 'ok';}/*ok*/

插入不成功discuz应该报错,怎么没有错误提示?
猜测:
1、class_core.php没有引入,并且没有初始化,不能使用DB调用
2、pre_xyk是表全名,默认是不要pre_前缀(若设置有)

<?phprequire './source/class/class_core.php';C::app()->init(); $insert_array = array(    'baankid'=>1,);if(DB::insert('xyk',$insert_array)){    echo 'ok';}?> 


就算这样执行也没有写入,
插件块那里用不用定义add.inc.php?

不成功总有提示吧,就是错误报告
你单独访问这个页面试试,成不成功

单独访问这个页面,没有任何输出,一片空白

include '../source/class/class_core.php';$discuz = & discuz_core::instance();$discuz->init();print_r($_G);


这样是有变量输出的,为什么:

include '../source/class/class_core.php';

../就有输出,./没有输出呢?

require '../../../source/class/class_core.php';//引入系统核心文件$discuz = & discuz_core::instance();//以下代码为创建及初始化对象$discuz->cachelist = $cachelist;$discuz->init();//以上是调用discuz公共执行类等核心代码//写入数据库$arr=array();$arr['userid'] = $userid;$count1=DB::insert('xyk',$arr);


这样已经能写入了,有点不明白,为什么这样就得:
require '../../../source/class/class_core.php';//引入系统核心文件


这样就不得:
require './source/class/class_core.php';//引入系统核心文件


路径没设好?

..是上一级目录开始查找
.是当前目录开始查找

嗯 非常感谢jam00的耐心解答,谢谢!

但是我见所有的插件都不会用 ../../../

都是 ./也能正常

目录层数都一样,为什么我的就必需用 ../../../ ?用绝对路径为什么也不得?

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
PHP Dependency Injection Container: A Quick StartPHP Dependency Injection Container: A Quick StartMay 13, 2025 am 12:11 AM

APHPDependencyInjectionContainerisatoolthatmanagesclassdependencies,enhancingcodemodularity,testability,andmaintainability.Itactsasacentralhubforcreatingandinjectingdependencies,thusreducingtightcouplingandeasingunittesting.

Dependency Injection vs. Service Locator in PHPDependency Injection vs. Service Locator in PHPMay 13, 2025 am 12:10 AM

Select DependencyInjection (DI) for large applications, ServiceLocator is suitable for small projects or prototypes. 1) DI improves the testability and modularity of the code through constructor injection. 2) ServiceLocator obtains services through center registration, which is convenient but may lead to an increase in code coupling.

PHP performance optimization strategies.PHP performance optimization strategies.May 13, 2025 am 12:06 AM

PHPapplicationscanbeoptimizedforspeedandefficiencyby:1)enablingopcacheinphp.ini,2)usingpreparedstatementswithPDOfordatabasequeries,3)replacingloopswitharray_filterandarray_mapfordataprocessing,4)configuringNginxasareverseproxy,5)implementingcachingwi

PHP Email Validation: Ensuring Emails Are Sent CorrectlyPHP Email Validation: Ensuring Emails Are Sent CorrectlyMay 13, 2025 am 12:06 AM

PHPemailvalidationinvolvesthreesteps:1)Formatvalidationusingregularexpressionstochecktheemailformat;2)DNSvalidationtoensurethedomainhasavalidMXrecord;3)SMTPvalidation,themostthoroughmethod,whichchecksifthemailboxexistsbyconnectingtotheSMTPserver.Impl

How to make PHP applications fasterHow to make PHP applications fasterMay 12, 2025 am 12:12 AM

TomakePHPapplicationsfaster,followthesesteps:1)UseOpcodeCachinglikeOPcachetostoreprecompiledscriptbytecode.2)MinimizeDatabaseQueriesbyusingquerycachingandefficientindexing.3)LeveragePHP7 Featuresforbettercodeefficiency.4)ImplementCachingStrategiessuc

PHP Performance Optimization Checklist: Improve Speed NowPHP Performance Optimization Checklist: Improve Speed NowMay 12, 2025 am 12:07 AM

ToimprovePHPapplicationspeed,followthesesteps:1)EnableopcodecachingwithAPCutoreducescriptexecutiontime.2)ImplementdatabasequerycachingusingPDOtominimizedatabasehits.3)UseHTTP/2tomultiplexrequestsandreduceconnectionoverhead.4)Limitsessionusagebyclosin

PHP Dependency Injection: Improve Code TestabilityPHP Dependency Injection: Improve Code TestabilityMay 12, 2025 am 12:03 AM

Dependency injection (DI) significantly improves the testability of PHP code by explicitly transitive dependencies. 1) DI decoupling classes and specific implementations make testing and maintenance more flexible. 2) Among the three types, the constructor injects explicit expression dependencies to keep the state consistent. 3) Use DI containers to manage complex dependencies to improve code quality and development efficiency.

PHP Performance Optimization: Database Query OptimizationPHP Performance Optimization: Database Query OptimizationMay 12, 2025 am 12:02 AM

DatabasequeryoptimizationinPHPinvolvesseveralstrategiestoenhanceperformance.1)Selectonlynecessarycolumnstoreducedatatransfer.2)Useindexingtospeedupdataretrieval.3)Implementquerycachingtostoreresultsoffrequentqueries.4)Utilizepreparedstatementsforeffi

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

SublimeText3 English version

SublimeText3 English version

Recommended: Win version, supports code prompts!

SecLists

SecLists

SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)