PHP Tutorials

SOURCE Exposure An important question about containment is the exposure of the source code. The main causes of this problem are the following common situations: L USE the. inc extension for the include file L Include files saved in home directory L

Code injection A particularly dangerous situation is when you try to use contaminated data as a leading part of a dynamic inclusion: In this scenario, the attacker can manipulate not just the file name, but also the contained resources. Because

1. Set the image anti-theft chain in htaccess Rewriteengine on################################################# #RewriteCond%{http_referer}!^ $RewriteCond%{ Http_referer}!^http://(www\.)? php.cn (/)?. *$ [Nc]rewriterule. *\. (gif|jpg|jpeg|bmp|png) $

Function As I write this book, http://www.php.cn/lists a total of 3,917 functions, including some syntax structures like functions, where I'm not going to differentiate them from functions, but instead treat them as functions. Because of the large

About the class we all have a certain understanding here only in PHP class noteworthy places The creation of----class---- PHP uses the keyword class to create a class and uses a pair of curly braces Such as: Class name{public $n = ""; Private $

A model is an instance of CModel or its subclasses. Models are used to persist data and the business logic associated with it. The model is a separate data object. It can be a row in a data table, or a form entered by a user. Each field of the data

The portal script is the initial boot PHP script that handles the user. It is the only PHP script that an end user can request to execute directly. In most cases, the entry script for a YII application contains a simple script such as the following:

The installation of YII consists of the following two steps: Download the YII framework from yiiframework.com. Unzip the Yii tarball into a Web-accessible directory (such as your Web root/www/wwwroot/). Tip: Installing in a web

Cookie Operating class Function: 1. Save, read, update, erase cookies data. 2. Prefix can be set. 3. Force timeout control. 4.cookies data can be strings, arrays, objects, and so on. Cookies.class.php _prefix = $prefix; } if (Is_numeric

In this paper, we analyze the creation and use of model (models) in Yii. Share to everyone for your reference, as follows: YII implements two models, the form model (Cformmodel Class) and the active record model (Cativerecord Class), which inherit

This article mainly introduces the PHP method of creating XML documents based on DOM, and analyzes the related operation skills of PHP using DOM to create XML format files, which can be referenced by friends. The example in this article describes

This article mainly introduces the PHP production of XML-based RSS feed function, combined with the example form analysis of RSS feed file generation class definition and use method, the need for friends can refer to the following The example of

Usually in development often encounter crawl a page content, but sometimes some pages need to login to access, the most common is the forum, this time we need to use Curl simulation landing. General idea: You need to request to extract the cookies

This article mainly introduces the PHP connection MySQL to increase, delete, change, check the operation of the method, has a good reference value, followed by a small series to see it If you don't say much, look at the code: codename Name

Types of common judging conditions Variables such as: $var Isset () Empty () Comparison operators such as:> Logical operators such as:! && | | OR and Specific type judgments such as: Is_null ()/is_array ()/is_int (), etc.

The unique count is a very common feature in a Web site system, such as a site that needs to count the number of unique visitor (i.e., Uvs) visited each day. Counting is a common problem, but it can be quite complex to solve: one is that the amount

Objective Redis is now recognized as the fastest memory-based key-value pair database, but the shortcomings of Redis is also very obvious, providing only the most basic hash set, list, sorted set, etc. based on data type, no table, no schema, no

Thinkphp is a fast, compatible and easy-to-use, lightweight, homegrown PHP development framework and the most widely used domestic framework in the country. Born in 2006, after FCS0.6.0 to thinkphp 0.9.5, after 1.0 to 3.0 development. 2015 released

In this paper, we describe the method of PHP to read the book XML format data based on DOM. Share to everyone for your reference, as follows: load (' books.xml '); $books = $doc->getelementsbytagname ("book"); foreach ($books as $book) {$authors = $

This article for everyone to share the Linux compression and decompression command, for your reference, the specific content as follows "Tar command" Decompression: TAR-ZXVF Filename.tar Compression: TAR-CZVF Filename.tar DirName "GZ