PHP

In OOP, a class can have one or more sub-classes, and each class has at least one public method as an external code to access its interface. Abstract methods are introduced to facilitate Inheritance. let's take a look at the definition of abstract

MarcAndreessen, co-founder of Netscape, predicted at the ZendPHP conference on Wednesday (1019) that a simple PHP descriptive language writing tool was developed for Web-based applications, it will be more popular than Java. Marc Andreessen,

Twitter is the most popular Internet service in the world. It provides users with micro-blog services, and the interface is concise and beautiful. In this article, we will use jqueyr to create a twitter-like site. You will learn some jquery skills

There are two traditional approaches to processing XML files: SAX and DOM. 1 SimpleXML introduction There are two traditional approaches to processing XML files: SAX and DOM. Based on the event trigger mechanism, Scan the XML file once to complete

Php string functions, which are commonly used in php. 1. character location search function: Strpos ($ str, search, [int]): searches for the first position of search in $ str starting from int; Stripos ($ str, search, [int]): the position where the

Summary of several methods for opening URL addresses in PHP. the functions here are mainly used for functions such as thief collection. 1: get content using file_get_contents in get mode The code is as follows: $ Url = 'http: // www.baidu.com /';

An array is a collection of data. it organizes a series of data to form an operable whole. Each object in the array contains two items: Key and value. 1. what is an array? An array is a collection of data. it organizes a series of data to form an

To learn how hackers intrude into the system, we recommend that you test the results first when writing php code. The focus of SQL injection is to construct SQL statements. Only SQL statements can be used flexibly. Statement can be used to construct

Reference assignment: this means that the new variable simply references the original variable (in other words, "become its alias" or "point. Changing new variables will affect the original variables, and vice versa. Value assignment: When a value

I know little about WordPress. The code used by WordPress to determine whether a user is logged on. For more information, see. WordPress Is_user_logged_in () Description Returns a boolean value of true or false based on whether the current

For Web programming, the most important thing is to access and read/write data. There may be many storage methods, such as strings, arrays, and files. I learned arrays today, which is an important method in PHP Data applications. PHP has a large

I have not updated the technical blog for a long time because I have been busy working during this time. During this period, I learned a lot of things I have never touched before. The following describes how to use the database abstraction layer PDO:

When I was a beginner in PHP, I read a bad book from the school library, and I didn't write any PHP code in it. when processing the form, it will automatically urldecode, therefore, I used the urldecode function to decode the Discuz X1.5 Forum of

Xml is widely used in joomla. from installation file configuration to templates, modules, components, and plug-ins, all applications are used in fixed formats, here we mainly talk about the application of xml in creating forms. the role of forms is

Today, the php version of the server is upgraded to 5.4.4, and a previous project is switched to apache. the dynamic second-level domain name resolution is implemented using. htcaccess, sharing the CI framework Apache The code is as

Huawei online storage has a straight-chain function, but it requires money. I have a Baidu network disk, but Baidu's external network disk chain cannot be directly used in the web page. Baidu can also have this function one day. Baidu online storage

Php connection to mssql is a common practice for many of my friends. However, this article is still a bit nagging, mainly to share the experience related to database connection. if you are interested, do not miss it, this article may be helpful to

This article introduces the integer type and floating point number of the PHP Data type. If you need a friend, refer to the following syntax: the integer value can be expressed in decimal, hexadecimal or octal notation. you can add an optional

This article gives a detailed analysis of the seven habits of writing a security-PHP application. if you need a friend, pay attention to the security issues, in addition to the actual platform and operating system security issues, you also need to

Php two-dimensional array groups by key name. This article introduces an example program about php two-dimensional array groups by a key name, if the data is retrieved FROM the database, select sum (t_value), t_id FROM t_table group by t_id, however,