PHP

$ Config ['base _ url'] = "http://www.jb51.net /". The URL of your website. CodeIgniter generates links and form addresses based on the URL.$ Config ['index _ page'] = "index. php": name of the index. php file under the CodeIgniter root directory.

Copy codeThe Code is as follows:/*** Modify an image to flip it to a specified degree** @ Param string $ filename file name (including file path)* @ Param float $ degrees rotation degree* @ Return boolean*/Function flip ($ filename, $ src, $ degrees

With the popularization of mobile devices, more and more mobile devices will access websites. Pages adapted to PCs are often unfriendly to mobile phone users. In some cases, we need to determine whether users are accessed by mobile phones. If they

In projects, we sometimes need to use PHP to encrypt specific information, that is, to generate an encrypted string through the encryption algorithm. The encrypted string can be decrypted through the decryption algorithm, this allows the program to

This article shares the differences between super global variables $ GLOBALS and global in PHP. 1. Super global variable $ GLOBALS PHP has many super global variables, and the following are all super global variables ): $ GLOBALS, $ _ SERVER, $ _

Currently, the three most common dynamic web page languages are ASP (Active Server Pages), PHP (HyperText Preprocessor), and JSP (Java Server Pages ). JSP and ASP can be embedded into HTML programs, but they are essentially different. (1) WEB server

We can use Alexa's website (or other webmaster Tool website) to search for our website traffic rankings so that we have to go to those websites. In fact, you can use the Alexa xml api to obtain the Alexa-related data (in XML format) of the website,

This type of function is very powerful, not only can send html format emails, but also can send attachments Note: When the author published it, it changed 《《? PhpclassEmail {// --- set the global variable var $ mailTo; // The recipient var $ mailCC;

During the development of PHP applications, the task of converting the numeric amount to uppercase Chinese characters is often encountered. I thought there must be compiled PHP functions on the Internet. But none of them were found. Helpless, so I

In PHP, echo and print functions are basically the same (output), but there are still slight differences between the two. echo outputs do not return values, but print returns values, if the execution fails, flase is returned. 1. differences between

Session is a global variable of the server. Why can it switch between different pages without losing data or saving data on the client? let's take a look at the working principle of session and Session is a global variable of the server. Why can it

In php, the most commonly used error mechanism trycatch {} is used to handle errors that can be captured through instant noodles, however, in php, error checking and disabling are also provided. you can process the error in phpini or add

This article briefly describes how to defend against xss attacks and SQL injection in php. if you need to know more, refer to. There are many articles about SQL attacks and various injection scripts, but none of them can solve the fundamental

I often hear from some friends that it is difficult to add a new site. I have a deep understanding of this. after all, in my daily work, I often need to optimize a new site to the top of the homepage or even rank first, therefore, we have some

As search engines continue to change and the industry becomes more and more competitive today, many well-ranked webmasters are not steadfast every day and are afraid of poor rankings, so how can we make the rankings more stable? Because the website

You have many choices when talking about Web development. Many of these methods involve preprocessing-that is, embedding code into HTML pages using specific tags that tell the preprocessor that they contain code and should handle it. Similar to cgi (

The ability to easily operate information submitted by users through HTML forms has always been one of the advantages of php (as the mainstream development language. In fact, php (as the mainstream development language) version 4.1 adds several new

1, download Google plug-in,: http://pan.baidu.com/share/link? Shareid1070861956uk18425838562 open Google's browser: Tool-extended program, as shown in: 3. zoom out Google's browser, drag the plug-in into the extension program, automatically 1,

Meaning and usage of the $ _ SERVER variable in php $ _ SERVER [& amp; #39; PHP_SELF & amp; #39;] function usage # file name of the script being executed, related to documentroot. $ _ SERVER [& amp; #39; argv & amp; #39;] function usage # parameters

1. let's first analyze how php generates a session. The purpose of the session design is to maintain the various statuses of each user to make up for the shortcomings of the HTTP protocol (stateless ). Now we have a question. we all know that the