search
HomeBackend DevelopmentPHP TutorialPHP中COOKIES使用示例_php技巧

主要是在登录和退出的时候,设置cookies。来保存登录和安全退出

1:在登录页面设置

//设置cookies的值
_setcookies($_rows['tg_username'], $_rows['tg_uniqid'],$_clean['time']);
_location(null,'index.php');

第二步:生成cookie,

/**
 * _setcookies
 * @param unknown $_username
 * @param unknown $_uniqid
 */
function _setcookies($_username,$_uniqid,$_time){
  setcookie('username',$_username);
  setcookie('uniqid',$_uniqid);
  switch ($_time) {
    case '0' : // 设置浏览器进程
      setcookie ( 'username', $_username );
      setcookie ( 'uniqid', $_uniqid );
      break;
    case '1' : // 一天的进程
      setcookie ( 'username', $_username, $_time () + 86400 );
      setcookie ( 'uniqid', $_uniqid, $_time () + 86400 );
      break;
    case '2' : // 一周的进程
      setcookie ( 'username', $_username, $_time () + 604800 );
      setcookie ( 'uniqid', $_uniqid, $_time () + 604800 );
      break;
    case '0' : // 一个月的进程
      setcookie ( 'username', $_username, $_time () + 2592000 );
      setcookie ( 'uniqid', $_uniqid, $_time () + 2592000 );
      break;
  }
}

第三步:登录状态中设置

//登录的情况,就是防止登陆后通过在浏览器中直接连接再次登录
function _login_state(){
  if (!isset($_COOKIE['username'])) {
    _alert_back("登录状态无法就行本操作!");
  }
}

//删除cookies
function _unsetcookies(){
  setcookie('username','',time()-1);
  setcookie('uniqid','',time()-1);
  _session_destroy();//删除session
  _location(null,'index.php'); //做跳转
}

第四步在登录页面和退出页面加上

//登录状态
  _login_state();

 显示数据的二个方法:在数据配置文件中配置,我的是mysql.func.php

/**
 * _fetch_array 只能获取一条数据组
 * @param $_sql
 */

function _fetch_array($_sql) {
  return mysql_fetch_array(_query($_sql),MYSQL_ASSOC);
}
/**
 * _fetch_array_list可以返回指定数据集的所有数据
 * @param unknown $_result
 * @return multitype:
 */
function _fetch_array_list($_result){
  return mysql_fetch_array($_result,MYSQL_ASSOC);
}

最后在页面中赋值

//从数据库里提取数据获取结果集
//我们必须每次重新读取结果集,而不是从新去执行SQL语句。
$_result = _query("SELECT tg_username,tg_sex,tg_face FROM tg_user ORDER BY tg_reg_time DESC");

<&#63;php while (!!$_rows = _fetch_array_list($_result)) {&#63;>
  <dl>
    <dd class="user"><&#63;php echo $_rows['tg_username']&#63;><&#63;php echo $_rows['tg_sex']&#63;></dd>
    <dt><img  src="<&#63;php echo $_rows['tg_face']&#63; alt="PHP中COOKIES使用示例_php技巧" >" alt="" /></dt>

以上所述就是本文的全部内容了,希望大家能够喜欢。

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 Performance Tuning for High Traffic WebsitesPHP Performance Tuning for High Traffic WebsitesMay 14, 2025 am 12:13 AM

ThesecrettokeepingaPHP-poweredwebsiterunningsmoothlyunderheavyloadinvolvesseveralkeystrategies:1)ImplementopcodecachingwithOPcachetoreducescriptexecutiontime,2)UsedatabasequerycachingwithRedistolessendatabaseload,3)LeverageCDNslikeCloudflareforservin

Dependency Injection in PHP: Code Examples for BeginnersDependency Injection in PHP: Code Examples for BeginnersMay 14, 2025 am 12:08 AM

You should care about DependencyInjection(DI) because it makes your code clearer and easier to maintain. 1) DI makes it more modular by decoupling classes, 2) improves the convenience of testing and code flexibility, 3) Use DI containers to manage complex dependencies, but pay attention to performance impact and circular dependencies, 4) The best practice is to rely on abstract interfaces to achieve loose coupling.

PHP Performance: is it possible to optimize the application?PHP Performance: is it possible to optimize the application?May 14, 2025 am 12:04 AM

Yes,optimizingaPHPapplicationispossibleandessential.1)ImplementcachingusingAPCutoreducedatabaseload.2)Optimizedatabaseswithindexing,efficientqueries,andconnectionpooling.3)Enhancecodewithbuilt-infunctions,avoidingglobalvariables,andusingopcodecaching

PHP Performance Optimization: The Ultimate GuidePHP Performance Optimization: The Ultimate GuideMay 14, 2025 am 12:02 AM

ThekeystrategiestosignificantlyboostPHPapplicationperformanceare:1)UseopcodecachinglikeOPcachetoreduceexecutiontime,2)Optimizedatabaseinteractionswithpreparedstatementsandproperindexing,3)ConfigurewebserverslikeNginxwithPHP-FPMforbetterperformance,4)

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

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

SAP NetWeaver Server Adapter for Eclipse

SAP NetWeaver Server Adapter for Eclipse

Integrate Eclipse with SAP NetWeaver application server.

MinGW - Minimalist GNU for Windows

MinGW - Minimalist GNU for Windows

This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

ZendStudio 13.5.1 Mac

ZendStudio 13.5.1 Mac

Powerful PHP integrated development environment

mPDF

mPDF

mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),