第一部分:安装Apache2.4.4
1.下载文件:httpd-2.4.4-win32-ssl_0.9.8.zip
2.解压安装:将Apache24文件夹拷到C盘根目录
3.打开C:\Apache24\conf文件夹下面的httpd.conf文件,用记事本打开即可
4.第213行ServerName前面的“#”号去掉;
5.第237行DocumentRoot "c:/Apache24/htdocs"改为"E:/WorkSpace/WWW"
6.第238行
note:WWW文件夹为网站的根目录,需要自己创建,否则会报错。
7.第271行DirectoryIndex index.html改为DirectoryIndex index.php index.html index.htm
第二部分:安装PHP5.4.151.下载文件:php-5.4.15-Win32-VC9-x86.zip
2.解压安装:解压文件,拷到C盘根目录,改名为PHP54
3.复制份php.ini-development,并改名为PHP.ini
4.打开C:\Apache24\conf文件夹下面的httpd.conf文件,在#LoadModule xml2enc_module modules/mod_xml2enc.so下面添加如下信息
LoadModule php5_module "C:/PHP54/php5apache2_4.dll"PHPIniDir "C:\PHP54"AddType application/x-httpd-php .php .html .htm
5.在WWW文件夹中创建index.php,文件内容如下
<html><head><title>Test PHP5</title></head><body><center><h1 id="This-is-test-information">This is test information</h1></center><hr><?phpphpinfo();?></body></html>
6.启动Apache服务器:在cmd窗口中启动(测试过程中窗口不能关闭,否则服务停止)
7.在浏览器中输入http://localhost/如果出现以下信息,则表明配置成功
NOTE: 1.让php支持MySQL:
将第730行; extension_dir = "C:\PHP54\ext"改为extension_dir = "C:\PHP54\ext"将第880、881行; extension=php_mysql.dll; extension=php_mysqli.dll改为extension=php_mysql.dllextension=php_mysqli.dll2.将Apache添加到系统服务:
添加服务:
"C:\Apache24\bin\httpd.exe" -k install -n "Apache 2.4.4" -f "C:\Apache24\conf\httpd.conf"
删除服务:
"C:\Apache24\bin\httpd.exe" -k uninstall -n "Apache 2.4.4"
开始服务:
"C:\Apache24\bin\httpd.exe" -k start -n "Apache 2.4.4"
停止服务:
"C:\Apache24\bin\httpd.exe" -k stop -n "Apache 2.4.4"or"C:\Apache24\bin\httpd.exe" -k shutdown -n "Apache 2.4.4"
重启服务:
"C:\Apache24\bin\httpd.exe" -k restart -n "Apache 2.4.4"

PHPsessionscanstorestrings,numbers,arrays,andobjects.1.Strings:textdatalikeusernames.2.Numbers:integersorfloatsforcounters.3.Arrays:listslikeshoppingcarts.4.Objects:complexstructuresthatareserialized.

TostartaPHPsession,usesession_start()atthescript'sbeginning.1)Placeitbeforeanyoutputtosetthesessioncookie.2)Usesessionsforuserdatalikeloginstatusorshoppingcarts.3)RegeneratesessionIDstopreventfixationattacks.4)Considerusingadatabaseforsessionstoragei

Session regeneration refers to generating a new session ID and invalidating the old ID when the user performs sensitive operations in case of session fixed attacks. The implementation steps include: 1. Detect sensitive operations, 2. Generate new session ID, 3. Destroy old session ID, 4. Update user-side session information.

PHP sessions have a significant impact on application performance. Optimization methods include: 1. Use a database to store session data to improve response speed; 2. Reduce the use of session data and only store necessary information; 3. Use a non-blocking session processor to improve concurrency capabilities; 4. Adjust the session expiration time to balance user experience and server burden; 5. Use persistent sessions to reduce the number of data read and write times.

PHPsessionsareserver-side,whilecookiesareclient-side.1)Sessionsstoredataontheserver,aremoresecure,andhandlelargerdata.2)Cookiesstoredataontheclient,arelesssecure,andlimitedinsize.Usesessionsforsensitivedataandcookiesfornon-sensitive,client-sidedata.

PHPidentifiesauser'ssessionusingsessioncookiesandsessionIDs.1)Whensession_start()iscalled,PHPgeneratesauniquesessionIDstoredinacookienamedPHPSESSIDontheuser'sbrowser.2)ThisIDallowsPHPtoretrievesessiondatafromtheserver.

The security of PHP sessions can be achieved through the following measures: 1. Use session_regenerate_id() to regenerate the session ID when the user logs in or is an important operation. 2. Encrypt the transmission session ID through the HTTPS protocol. 3. Use session_save_path() to specify the secure directory to store session data and set permissions correctly.

PHPsessionfilesarestoredinthedirectoryspecifiedbysession.save_path,typically/tmponUnix-likesystemsorC:\Windows\TemponWindows.Tocustomizethis:1)Usesession_save_path()tosetacustomdirectory,ensuringit'swritable;2)Verifythecustomdirectoryexistsandiswrita


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