PHP

Copy Code code as follows: /** * Reverse-order two-dimensional array inserts an element * * @author Wadeyu * @date 2012-05-30 */ $aSorted = Array ( Array (1, 100), Array (2, 90), Array (3, 80), Array (4, 70), Array (5, 60), Array (6

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,

1. The PDO (PHP Data Object) extension defines a lightweight, persistent interface for PHP to access the database. Each database driver that implements the PDO interface can display its own features in the form of regular expansions. Main: PDO

This example describes how PHP uses the Memcache caching technique to improve response speed. Share to everyone for your reference. The specific analysis is as follows: Although the PHP has been done very quickly, but if the large amount of data

When data is exported to Excel, the number format is not correct, generally divided into the following two kinds of situations. 1, the Excel cell set length is not enoughWorkaround: Copy Code code as follows: In the excel.php file

This article illustrates how PHP connects to ODBC data sources and saves and queries data. Share to everyone for your reference. The specific implementation code is as follows: Copy Code code as follows: $CONNSTR = "Driver=microsoft

A widely circulated online article about PHP's two expansion modules Memcache and memcached differences, which deliberately highlighted the memcached and memcached a big difference is that the memcached module does not support long connections. So

1. Basic knowledge1.1 What is shell programming? In Unix, the shell is not a simple command interpreter (typically with DOS in Windows), but rather a full-featured programming environment. The Shell is part of the operating system that is used to

This article summarizes and analyzes the common mathematical functions of PHP. Share to everyone for your reference. The specific analysis is as follows: ABS () function definition and usage: Returns the absolute value of a number. Syntax: ABS (x),

This example describes the use of the ChDir () function in PHP. Share to everyone for your reference. The specific usage analysis is as follows: PHP chdir () function syntax: BOOL Toggle Directory (string directory) dirdirectory change to.changes

Here are two good tools you can use for PHP capture. One is Snoopy, one is simple_html_dom. There are many ways to collect (in fact, 2-3 of the essence, the other is derived), PHP has several methods can also be directly collected. But, out of the

Several examples of how PHP algorithms are collated involve the following.PHP bubblingPHP Two-wayPHP to calculate primePHP multiplication Table Example of a php bubbling method Copy Code code as follows: PHP bubbling from small to

As shown below: Copy Code code as follows: function Unicode_encode ($str, $encoding = ' GBK ', $prefix = ' &# ', $postfix = '; ') { $str = Iconv ($encoding, ' UCS-2 ', $str); $arrstr = Str_split ($str, 2); $unistr = '; For ($i =0, $len

Hand-written in front of the automatic completion of a full function, write simple, only the mouse to select the function, does not support keyboard selection. Because the project has many places to use this function, therefore needs to do

We often see some websites that show you the type of browser you are using and the language you are using, for example, the browser you are using is IE6 and traditional. It doesn't look very flashy. In fact, such a function is not difficult to

Recently encountered the database when the Phpadmin import problem, the new version of the Phpadmin import limit is 8M, the old version of the possible 2M, my database has dozens of trillion how can this be done? First of all, if you have a

The PHP string function includes the lookup character position function, extracts the child character function, replaces the string, the character length, compares the character function, splits the array character, removes the space and so on. The

This example describes how PHP uses the feof () function to read files. Share to everyone for your reference. The specific usage is as follows: Feof applies to PHP 4, PHP 5-Used to test whether the file pointer is at the end of the file. If the

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 (

The example in this article describes a method for Php+ajax implementation without refreshing paging. Share to everyone for your reference. The implementation methods are as follows: This is based on the original ecology of the PHP +js +ajax of the