PHP Tutorials

This section is mainly for some specific types of optimization queries: (1) Count query optimization, (2) Correlation query (3) subquery (4) GROUP by and distinct optimization (5) LIMIT paging optimization count query optimizes the effect of the

Shuffle () defines and uses the shuffle () function to rearrange the elements in the array in random order. Returns TRUE if successful, otherwise FALSE is returned. Note: This function assigns the new key name to the cells in the array. This will

In an object-oriented program, the largest switch/case statement I've ever seen has more than 20 conditions. During the run, the code module executes all the conditions each time. Each condition is responsible for creating a new object that is used

Structure diagram for Tomcat Server This file describes how to start Tomcat server & Lt Logger/> 1. Recommended for 9 articles on Server.xml Summary: Structure diagram for Tomcat Server This file describes how to start the Tomcat server 2.

Absrtact: This paper mainly introduces the analysis and design of a universal single sign-on system using Webservice,session,cookie technology. The specific implementation language is PHP. Single-sign-on, the English name of "a" on, referred to as

The CHR function is used to convert an ASCII code to a character, the Ord function is used to convert a character to ASCII ASCII code that is the computer can display the character encoding, its value range is 0-255, including punctuation, letters,

php File Upload-sample code for multiple file uploads PHP supports uploading multiple files at the same time and automatically naming their information as an array, and it is very simple to implement such a function, simply by uploading the domain

Using the GD2 function to implement chart analysis product data (PHP graphic image Typical application tutorial 6) using charts to analyze product data information is the most commonly used data management model of large and medium-sized enterprises,

Through the previous series of learning to understand the PHP constants and variables, then you know what the PHP constants and variables are related and different? Don't worry, just take a look here. The relationship and difference between PHP

What is the function of PHP string function Stripos ()? The String function Stripos () is the first occurrence of a string in another string, and the function is case-insensitive. It is convenient to use, and its associated function has Strripos

Scintilla provides search and replace functionality, which can be used for general lookups and regular expression lookups. The regular expression of Scintilla provides only a limited number of basic functions. When you are searching for text, you

Note: version 1.0.3 supports modules. A module is a standalone software unit that contains models, views, controllers, and other supported components. In many ways, the module looks like an application. The main difference is that the module

1. Open GD Extension Extension=php_gd2.dll Apache restart 2. Example: Scene: Make a green picture of 500x300 ① Creating a canvas Canvas, a resource-based data. An image resource that can be manipulated. Create a new canvas (new) Imagecreate (wide,

This article is the second part of knowledge about PHP, strings, encodings, UTF-8. First, the conclusion-- use UTF-8 encoding in all aspects of PHP . The PHP language level does not support the Unicode character set, but most of the problems can be

This example describes the PHP object clone clone usage. Share to everyone for your reference, as follows: Shallow clone: Only non-object non-resource data in the cloned object, that is, the object's property is stored in the object type, the clone

function Array_sort ($array, $key) {if (Is_array ($array)) {$key _array = null; $new _array = null; for ($i = 0; $i PHP two-dimensional array key value ordering PHP Array_multisort () can be used to sort multiple arrays at once, or to sort

In the middle of a problem is the submission of the Chinese file name directly into the header under IE will become garbled, the solution is to urlencode the file name first and then put in the header, as follows. The code is as follows: Solve

The code is as follows: Require_once "./include/zip.php"; $zip = new Phpzip ();　　 $zip-Createzip ("folder directory address to compress", "compressed file name. zip");　　Generate only non-automatic downloads $zip-downloadzip ("folder directory

PHP GD Library related tutorials： 1.PHP Development watermark and thumbnail tutorial 2.PHP watermark and thumbnail latest video tutorial 3.php Picture processing GD2 configuration file modification Image_type_to_mime_type-Gets the MIME type of the

Everyone knows that the phpinfo (), which is used to display the server configuration, is a very useful tool for installing a new server, and is a very useful tool to communicate with various managers. Of course, after use, it is usually removed or