PHP Tutorials

PHP is often blamed for the fact that it may allow URLs to be imported and executed. In fact, this is not surprising because it is one of the most important reasons for the vulnerability of PHP applications called remote URL Include vulnerabilities.

Session pinning The main concern about sessions is the confidentiality of session identities. If it is confidential, there is no risk of session hijacking. With a legitimate session ID, an attacker can be very successful in posing as one of your

My frame inside a multidimensional array element operation class, mainly used to read the array of configuration data, can be through the way of string nodes: A.B.C to get and set elements, as well as multi-dimensional array of coverage, there is a

This article mainly introduces PHP implementation of large number (floating point) to take the remainder of the method, combined with examples of the PHP mathematical operations related operation skills, the need for friends can refer to the

Caching is a simple and effective way to improve the performance of your Web application. By storing relatively static data in the cache and retrieving the cache when the request is received, we save the time it takes to generate the data. Using

constants, predefined constants (understand), operation symbols (see this blog, the following operators are how to do not know, just understand the operator), the value of the variable is the time of the string A + + and--focus on the ~ An example

do not map, print results are written directly in the code, than the stickers clear. "; echo $ $x; The printed result is b echo ""; echo $$ $x; The printed result is C echo ""; echo $$$ $x; The printed result is D-echo ""; echo $x; The

This article summarizes the way PHP reads XML format files. Share to everyone for your reference, as follows: Books.xml file: jack herringtonphp Hackso ' Reillyjack Herrington podcasting Hackso ' Reilly 1.DOMDocument method load (' books.xml ');

A controller is an instance of Ccontroller or its subclasses. It is created by the app when the user requests it. When a controller is running, it performs the requested action, and the action usually introduces the necessary model and renders the

This article mainly for you in detail the PHP send mail function, a Phpmailer plug-in easy to implement the mail sending function, with a certain reference value, interested in small partners can refer to The example of this article for everyone to

php Password Generation class Function: 1. Can set the password length. 2. Can set the number of passwords to generate, batch generation. 3. You can specify password rules, letters, numbers, special characters, etc. GeneratePassword.class.php =4 &

This article introduced the PHP development encountered in the array problem, small series here to you summed up 5 methods about PHP to determine whether the array is empty, need to refer to the friend This article introduced the PHP development

This article mainly introduces the PHP implementation of XML and arrays of the mutual transformation function, combined with the example of PHP to implement XML-to-array and array-to-XML related operations skills, the need for friends can refer to

This article describes the PHP picture clipping and scaling example, not much nonsense, the specific code is as follows: /* *exif_imagetype--Determine the type of an image * Function Description: function is to cut an image into an image of any

In the development process, our data table generally uses the self-increment number as the ID primary key, but the ID is the numeral type, is not easy to understand. After we have converted the IDs to numbers in a certain format, it is easy to know

Extended Build There is no doubt that you have noticed that each PHP extension contains some very common and very monotonous structures and files. When starting a new extension development, if these public structures already exist, it is meaningful

since version 1.1.2, YII has been equipped with a WEB-based code generation tool Gii . It replaces the previous command line-end code generation tool yiic shell . In this section, we will explain how to use the GII and how to extend the GII to

This article is an article about the Laravel split route file (routes.php), the best way of tutorial articles, the content of the very detailed, learning Laravel small partners can refer to learning. Objective Laravel routing is very powerful, the

in the Infinite Classification of PHP, many of the methods used are recursive, but our understanding of recursion is still very vague, we will then understand the advantages and disadvantages of recursion, so that we can have a comprehensive

From the file encoding method, the file can be divided into ASCII code files and binary code file two kinds. ASCII files are also referred to as text files, which are stored on disk with one byte per character for the corresponding ASCII code.