PHP

This article illustrates the GCD common algorithm for PHP to compute two integers. Share to everyone for your reference. Specifically as follows: Copy Code code as follows: Timing, returning seconds function Microtime_float () { List

first, the introduction PHP is a powerful but fairly easy to learn server-side scripting language that even inexperienced programmers can use to create complex, dynamic Web sites. However, it often has many difficulties in achieving the secrecy

Cases: Copy Code code as follows: $a = fopen (' test.txt ', ' R '); There is no decision on the file to open, if the file does not exist will be an error ?> The correct wording should read as follows: Copy Code

In the Reading YII2 source code when the contact with the trait, I learned a bit, write down the blog record. Since PHP 5.4.0, PHP implements a code reuse method, called traits. Traits is a code reuse mechanism prepared for a single inheritance

Usually read the error log PHP, very few opportunities to write their own log, saw Wang Jian's "Best log Practice" that write a clear, structured log is still very necessary. Before writing a journal, we ask ourselves: why do we sometimes have to

Description 1, the server caches the compressed files, again access reduces the time to compress, reduce the CPU occupancy rate. 2, by setting the client file cache time, reduce the number of requests again, can be reduced by more than 85%. 3,

Note: This feature relies on the GD2 graphics library Recently to use PHP to generate thumbnails, looked up on the internet, found this article: PHP generated thumbnail images After a trial, there are several problems: 1, PNG image generated

Copy Code code as follows: $link = Array ( ' Baidu, http://www.baidu.com/', ' Server software, http://s.jb51.net/', ' Cloud-dwelling community, http://www.jb51.net/', ); $STR = ' Search Server Software in Baidu can go to cloud habitat

Reference types (Reference) are used in many computer languages and are present as a very powerful and useful feature. It has a similar pointer (pointer) implementation, but it has a different performance than the pointer. For example, a reference

The IDE (Integrated development environment) or in other words the PHP Editor is an essential tool for developers to build mobile or Web applications. In this article, we'll discuss the PHP editor and share 5 of the best cross-platform PHP editors.

So is there a way to automatically clean up temporary folders? The following code is a simple time to clean up the file under the folder PHP code. PS: This code, if you do not restart the site will continue to perform, so only for the local

All the friends who develop PHP know that in fact, the most worry is that there are some exceptions or errors in the program, if the output to the user's screen will frighten the user, and even lost the job, if not output to the screen to find ways

This article illustrates the XML basic introduction and XML tag elements of the Introduction to PHP operations XML. Share to everyone for your reference. The specific analysis is as follows: Explained in XML instance: Copy Code code as

This article describes the PHP custom file Save Session method. Share to everyone for your reference. The implementation methods are as follows: session.inc.php file: Defines the session file store, the session solution, is to provide a way to

Get the actual demo of the title of the page through PHP: Sample code: Copy Code code as follows: /* function: Get the content on the URL page Parameters: $_post[' url '] */ Set maximum number of seconds to execute Ini_set

This article summarizes the common methods of whether the PHP detection string is UTF8 encoded. Share to everyone for your reference. The implementation methods are as follows: There are a number of ways to detect string encoding, such as using Ord

Free to find a little bit of PHP about OO Point of information to see, access control modifiers, self,parent,const,static several keywords, the arrow operator (also called in the book). That is, "->"), the range parsing operator (that is, double

Sometimes we need to use randomly generated username and password in the application, which can greatly improve the security of the application, generate random username and password in PHP can use the Mt_rand function or the RAND function, the RAND

PHP Global variables in practical applications will find that many problems need us to constantly improve the processing. In this article, we give some specific solutions to the problems of PHP global variables.the role of the 1:php global variable

This article summarizes the HTTP protocol used by header in PHP and the common methods. Share to everyone for your reference. The specific methods are as follows: Copy Code code as follows: ? Php function HTTPS ($num) { $http = Array (