unlink file

Many friends often encounter permission problems during PHP operations. Here, I will discuss the permission issues with you based on my previous operation experience. Permission errors usually occur when data is read and stored. First of all, let's

Php file processing is a note I made when I was learning php. in order to have a good study habit and to provide a learning reference for programmers, I would like to share my learning notes, I hope to help myself and everyone. This learning

I often see people on the Internet to ask how to static the entire dynamic site, in fact, the method is very simple. The code is as follows: Add Ob_start () at the beginning of your service;Ob_start ();Here's your code.Add Ob_end_clean () at the

For example, through the background, delete a session, so that the user login status is invalid Add: is a session between different sessions, and may only know values such as username. Reply content: For example, through the background, delete

friends who have used the SAE platform should know that, for platform security reasons, the SAE limits the user's use of the local IO. However, for some of the traditional PHP projects, it may bring a lot of inconvenience, because they are more or

Unlink (filename, context)Example The code is as follows:Copy code If (unlink ($ file_delete )){Echo "The file was deleted successfully.", "n ";} Else {Echo "The specified file cocould not be deleted. Please try again.", "n ";} Determine

Unlink ($ file)Example 1 The code is as follows:Copy code Unlink ($ somefile)Or die ("Cannot delete file .")?> Sometimes there may be permission issues, and the file has the write permission, but cannot be deleted.The reason is simple. Deleting

Header ("Content-type:text/html;charset=utf-8"); Define (' Session_pre ', ' xx_ '); Define (' BR ', ' '); function Start ($savePath, $sessionName) { Global $sessionPath; $sessionPath = $savePath. Directory_separator; Echo __method__. BR; return

The example in this article describes how to cache php variables in file form. Share to everyone for your reference. The implementation method is as follows: [PHP] view plaincopy /* $cache _set = Array ( Cache path, last add "/" '

There are some features not added to, such as automatic renaming, image processing and so on. You can add them as needed. Use: $up = new Upfile (root_path. ' data/'. Date ("Ym", Time ()), array (' gif ', ' jpg ', ' jpeg '), true); $fileimg =

Recently, carefully read a lot about the cache of the article, there are program-level, non-program-level, memory cache, file cache and so on, feeling a lot of benefits, so to consolidate knowledge, strengthen the memory, oneself also move to write

First, Introduction In any computer device, files are all necessary objects, and in Web programming, the operation of the file has always been a headache for web programmers, and, the operation of the file in the CMS system is a must, very useful,

In any computer device, files are all necessary objects, and in Web programming, the operation of the file has always been a headache for web programmers, and, the operation of the file in the CMS system is a must, very useful, we often encounter

First, directory operations The first is the function that reads from the directory, Opendir (), Readdir (), Closedir (), which is used when the file handle is opened, and then the iteration is listed: $base _dir= "filelist/"; $fso =opendir

/** * Read or set cache * * @access Public * @param string $name cache name * @param mixed $value cache content, NULL to delete cache * @param string $path cache path * @return Mixed */ function cache ($name, $value =, $path =) { return

About PHPIn the directory operation and file operation, also introduced, but some people still do not understand. The following is a detailed description of PHP directory operations and file operations. In any computer device, files are all

For efficient cache class, access 1W pages per second, each page is not the same, may be millions,, want to try the cache processing, the server can't carry Ah, find a cache class, seemingly did not solve the load problem. Cache_life) {

Examples of Use: upload.php Include_once "upload.class.php"; if ($Submit! = ") { $FILEARR [' file '] = $file; $FILEARR [' name '] = $file _name; $FILEARR [' size '] = $file _size; $FILEARR [' type '] = $file _type; /** file types allowed to upload *

PHP file operation, 　Fstat function: Displays all the information of a file $file _path = "test.php"; if ($fp=fopen($file _path, "A +")) {$file _info=Fstat( $fp ); Echo ""; Print_r ($file _info); Echo ""; Echo "File size is".

Copy CodeThe code is as follows: /* Code features: Use PHP to skillfully set the image by the time of creation to classify storage; The picture file property must be removed from the read-only attribute, otherwise it cannot be deleted by