unlink file

PHP5 tutorial file operations. I. INTRODUCTION in any computer device, files are essential objects. in web programming, file operations have always been a headache for web programmers, introduction to file operations in the cms system In any

Php recursively creates and deletes folders. Method 1: Copy the code as follows :? Php *** directory generation class: UtilsMakeDir * @ authoryepeng * @ since2010.3.18 * classUtilsMakeDir {The first method is not used when the base directory is

File upload class. Example: upload. php? Phpinclude_onceupload.class.php; if ($ Submit !) {$ FileArr [file] $ file; $ fileArr [name] $ file_name; $ fileArr [size] $ file_size; $ fileArr example: Upload. php Include_once "upload. class. php "; If ($

A very convenient PHP Cache class! Php code Cache_root = dirname (_ FILE __). '/.. /cache'; // cache storage directory $ this-> file_dir = $ file_dir; $ this-> cache_time = $ cache_time; $ this-> file_two = $ file_two; $ this-> file_fix = $

PHP class for generating static pages. Copy the code as follows :? Phpclasshtml {var $ dir; dirforthehtmls (without) var $ rootdir; rootofhtmlfiles (without): htmlvar $ name; html file storage path var $ dirname; specified file The code is as

Used to cache php variables as files --> $velocityCount--> --> 1. [PHP] code '. /Cache/', // cache time 'cachetime' => 20, // cache type 'cachetype' => 1, // extension 'cacheexe '=> '. php '); $ cache = new Cache ($ cache_set); $ a = array ('1',

Code function: use PHP to classify images by creation time and store image file attributes. read-only attributes must be canceled; otherwise, images cannot be deleted. The code is as follows: /* Code function: uses PHP to classify and store

Php sorted 0.1 billion QQ numbers and posted them. Split into thousands of parts for sorting and merging. First, create a txt file with 0.1 billion QQ numbers. $ V) {$ arr = range ($ v * 10000 + 10000,100 00 * ($ v + 1) + 9999); shuffle ($

Php learning notes-advanced tutorials-reading files, creating files, and writing filesOpen the file: fopen (filename, mode); // fopen ("test.txt", "r"); open mode: r read-only mode, point the file pointer to the file header r + read/write mode to

A PHP cache code is described in detail later. For more information about php learning, see. A PHP cache code is described in detail later. For more information about php learning, see. The Code is as follows: Define ('cache _ root', dirname (_

Copy codeThe Code is as follows:/*Code function: uses PHP to classify and store images by creation time;The Image File Attribute must be removed from the read-only attribute; otherwise, it cannot be deleted.By lost63*/// Delay settingsSet_time_limit

Directory1 . Vulnerability Description 2 . Vulnerability trigger Condition 3 . Vulnerability Impact Range 4 . Vulnerability Code Analysis 5 . Defense Methods 6. Defensive thinking1. Vulnerability descriptionA simple summary of how this vulnerability

Copy codeThe Code is as follows:$ File = "aa. php ";$ Code = " ";$ F = fopen ($ file, "r + ");$ Content = fread ($ f, filesize ($ file ));Fclose ($ f );If (! Strstr ($ content, $ code )){$ ArrInsert = insertContent ($ file, $ code, 3 );Unlink ($

First, a simple instance is provided.Copy codeThe Code is as follows:If (! Is_dir ('txt ') // determines whether the txt file is a folder directory.{Mkdir ('txt '); // create a directory named txt$ Open = fopen ('txt/in.txt ', "w +"); // open a file

Example:Upload. phpInclude_once "upload. class. php ";If ($ Submit! = ''){$ FileArr ['file'] = $ file;$ FileArr ['name'] = $ file_name;$ FileArr ['SIZE'] = $ file_size;$ FileArr ['type'] = $ file_type;/** Supported file types */$ Filetypes = array ('

PHP does not provide the function of querying directory size, copying directories, deleting directories with files, we need to write our own This function simply passes a URL and can recursively query the file size in the directory to count the

Directory Operations $base _dir = ' filelist/'; $fso = Opendir ($base _dir);//Open Directory, return directory handle echo ' Basedir: '. $base _dir. ' '; while ($filelist = Readdir ($FSO)) {echo $filelist. '';} Closedir ($FS);//close

Objective When we develop, sometimes we need to involve images, upload and download files and other operations. For example, when registering an account, sometimes you need to upload pictures of the picture, this time you need to use the file

Both ASP and PHP can delete their own z. asp The code is as follows: S = Server. MapPath ("z. asp ")Set fso = CreateObject ("Scripting. FileSystemObject ")If fso. FileExists (s) ThenFso. Deletefile (s)End IfSet fso = Nothing%> Z. php The

A file Upload class in the PHP5 + UTF8 environment is written as needed. multifile upload is supported and MIME detection is performed on common file types. some features are not added, such as automatic renaming and image processing. you can add it