PHP Tutorials

In programming, recursion (recursion) is a very common concept, the rational use of recursion, can improve the readability of the code, but also may bring some problems. The following is an example of factorial (factorial) to illustrate the use of

Getenv getting the environment variables of the system Syntax: String getenv (String varname),-----------parameter varname should be a predetermined element index name in $_server (server Super global variable array), or putenv ("New=very new")

1. ReCAPTCHA The ReCAPTCHA library allows you to create an advanced CAPTCHA system for your website, which is actually used to generate authentication information, even including voice verification. Of course there are reCAPTCHA services available,

Translator Note: This is a German written about PHP "long-winded", the author in the text to the PHP marvellous, a great unified the posture of the lake. And do not care whether it is correct, such a classic "bragging Qiwen" for us these very scared

Write Once-run AnywhereWrite once-run anywhereThis is a marketing slogan for Java, but it is also one of the key features of PHP. Many business models rely on operating system independence to ensure that products can be sold to a wide range of

I like to think of tools bundled with SQL Server as inverted pyramid type, tools for diagnosing and checking general problems at the top, finding and diagnosing problem-specific areas of the tool at the bottom. In addition to providing a convenient

If you use an Apache or Linux system then the URL Chinese garbled This problem is very common things, the following small part to introduce you to the URL in PHP to pass the Chinese garbled problem solution, I hope this method for the students have

1. Origins With regard to PHP, many people's intuitive feeling is that PHP is a flexible scripting language, library class rich, easy to use, secure, very suitable for web development, but poor performance. is PHP's performance really as bad as

PHP is the ideal choice for creating dynamic and novel Web applications. Needless to say, in the Web development World, PHP is one of the most popular languages. Some of the most useful PHP open source tools have really saved a lot of developers

Summary: When we write a program, it is always unavoidable to make mistakes, no matter how cautious. These errors often confuse the PHP compiler. If developers are unable to understand the meaning of compiler error messages, they are not only

CodeIgniter upload picture does not correctly identify the problem resolution of the picture type, CodeIgniter upload the image In the upload class with CodeIgniter upload pictures, is clearly jpg format picture, but CI always recognized as

Thinkphp Verification Code and pagination example tutorial, thinkphp example Tutorial This paper describes the two common functions of thinkphp: Verification code and paging. It is very common in the project development of thinkphp and has high

PHP implementation AES256 Encryption algorithm example, AES256 encryption algorithm Example In this paper, the method of implementing AES256 encryption algorithm in PHP is described, and it is a more common encryption algorithm. Share to everyone

PHP uses curl to perform a mock login to a website with a verification code, curl Verification Code Many of the online simulation login programs, mostly through the service program Apache and other operations, get to the verification code displayed

PHP upload principle and operation implementation, PHP upload principle About PHP upload file function class Library, there are many packages on the Internet is perfect, we can directly use it. This article is just about the upload principle and

CI Framework Source Reading Notes 1,CI Framework source notes The first use of the CI framework, it is intended to write a CI source reading notes series, unfortunately, has not acted. There are few recent projects and there is some time to write

PHP analog ASP. Webfrom Button Submit Event instance, Asp.netwebfrom Because the company needs PHP project development, PHP just get started, in the Write button submission process, the button event in ASP. First look at the following code, '; if (!

Understand Streams in PHP and understand Phpstreams Streams is a powerful tool that PHP provides, and we often inadvertently use it, and if good use will greatly improve PHP productivity. When you harness the power of streams, your application will

Open Source personal blog Imarkchina website system source code, Imarkchina is a free open source personal blog, everyone can use her!Imarkchina is a non-database lightweight blog program, as long as the server hard disk is not a

PHP Permanent login, remember my feature implementation methods and security practices 　PHP Permanent login, remember my feature implementation methods and security practices This article mainly introduces the PHP permanent login, remember my