


Solution to the problem of garbled Chinese name files uploaded by php+CKFinder_PHP Tutorial
A commonly used tool, php+CKFinder is a solution to the problem of garbled characters when uploading files with Chinese file names. This problem is mainly a solution to the problem of garbled characters when uploading images with Chinese file names.
Problem with garbled characters when uploading files with Chinese names
Find the following configuration code in ckfinder/config.php:
代码如下 | 复制代码 |
/* If you have iconv enabled (visit http://php.net/iconv for more information), you can use this directive to specify the encoding of file names in your system. Acceptable values can be found at: http://www.gnu.org/software/libiconv/ Examples: $config['FilesystemEncoding'] = 'CP1250'; $config['FilesystemEncoding'] = 'ISO-8859-2'; */ $config['FilesystemEncoding'] = 'UTF-8'; |
Change UTF-8 to GB2312. After uploading, the file name is correct, but the link displayed in CKEditor is garbled because the character set used by the page where CKEditor is located is UTF-8. I have not studied how to solve this problem in detail. An alternative solution is to find a file renaming solution.
Upload file rename
Modify ckfindercoreconnectorphpphp5CommandHandlerFileUpload.php
Find the following code
<table width="620" align="center" border="0" cellpadding="1" cellspacing="1" style="background:#FB7"> <tr> <td width="464" height="27" bgcolor="#FFE7CE"> 代码如下</td> <td width="109" align="center" bgcolor="#FFE7CE" style="cursor:pointer;" onClick="doCopy('copy3782')">复制代码</td> </tr> <tr> <td height="auto" colspan="2" valign="top" bgcolor="#FFFFFF" style="padding:10px;" class="copyclass" id=copy3782><pre class="code">if ($sFileName != $sUnsafeFileName) { $iErrorNumber = CKFINDER_CONNECTOR_ERROR_UPLOADED_INVALID_NAME_RENAMED; }Add after this code
<table width="620" align="center" border="0" cellpadding="1" cellspacing="1" style="background:#FB7"> <tr> <td width="464" height="27" bgcolor="#FFE7CE"> 代码如下</td> <td width="109" align="center" bgcolor="#FFE7CE" style="cursor:pointer;" onClick="doCopy('copy3357')">复制代码</td> </tr> <tr> <td height="auto" colspan="2" valign="top" bgcolor="#FFFFFF" style="padding:10px;" class="copyclass" id=copy3357><pre class="brush: php; title: ; notranslate" title="">$sExtension=CKFinder_Connector_Utils_FileSystem::getExtension($sFileName); $sFileName=date('YmdHis').'.'.$sExtension;

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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