PHP Memory Management Detailed

Memory Management in PHP The most important difference between PHP and C is the control of memory pointers. Memory In PHP, it's simple to set a string variable: { char *str; str = strdup ("Hello World"); if (!str) {

How to build PHP environment in Linux system

Building PHP Environment PHP almost supports all popular databases, almost all system platforms, mixed with C Java Perl and other syntax and custom syntax, is the server-side HTML embedded script 1. Install the PHP package 1. Unzip and release

PHP associative arrays are not specified with hash table (hash tables)

One of the most important data types in PHP is an associative array, also known as a hash table, which is a very useful data structure. In the program, we may encounter problems that need to be eliminated, and give the simplest model: There is a

The calendar that PHP implements

The calendar effects are shown below: calendar.class.php year=isset ($_get["year")? $_get["Year"]: DA Te ("Y"); $this->month=isset ($_get["month"])? $_get["Month"]: Date ("M"); $this->

How to get the file name extension in PHP

$str = ' AS.DA.EFG '; Gets the file suffix name //strrchr-The last occurrence of the specified character in the string , Echo substr (STRRCHR ($str, "."), 1). " "; Strrpos-calculates the position of the specified string

How to traverse an associative array in PHP

In PHP, arrays are grouped into two categories: Numeric index arrays and associative arrays. Where the numeric index array is the same as the array in C language, subscript is for 0,1,2 ... An associative array subscript may be any type, similar to

PHP HTTP request class, support Get,post,multipart/form-data

HttpRequest.class.php _ip = isset ($config [' IP '])? $config [' IP ']: '; $this->_host = isset ($config [' Host '])? $config [' Host ']: '; $this->_url = isset ($config [' url '])? $config [' url ']: '; $this->_port =

SimpleXML Processing in PHP

Introduction: Learn about the SimpleXML extension bundled with PHP version 5, which enables PHP pages to query, search, modify, and redistribute XML in PHP-friendly syntax. PHP version 5 introduces SimpleXML, a new application programming interface

PHP Development Framework Yii Framework Tutorial (a) UI component Zii Component Introduction

yii

Some of the UI components supported by the YII framework are described earlier, and in addition to the UI components described earlier, the YII framework provides a ZII component library, including a list view ListView, a tabular view GridView, and

PHP Development Framework Yii Framework Tutorial (a) UI component TreeView sample

yii

CTreeView is used to display data with hierarchies, using the TreeView to set up the Data property. Data is an array with the following structure: Ext:string, the text of the tree node. Expanded:boolean, optionally, indicates whether the node is

How to create an RSS reader using PHP

Jacques Noah published an article on devshed about creating a PHP-based RSS reader in PHP4 with any version of MySQL, with three main tags in the RSS document: Title,link and Description, contain the same information as their name hints. Jacques

PHP uses zlib extension to implement page gzip compression output

GZIP (Gnu-zip) is a compression technique. The page size can be turned into 30% or smaller after gzip compression. This way the user will feel very happy when browsing! To achieve the GZIP compression page requires a common browser and server

PHP Calendar class

Class calendar{/** Calendar** @ Author: sports98* email:flyruns@hotmail.com* @ Version: V1.0*/var $YEAR, $MONTH, $DAY;var $WEEK =array ("Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday");var $_month=array ("=>", "January","

Common form validation classes in PHP

Forms validation classes commonly used in PHP Dynamic Web page development Class Class_post{Verifies whether a letter/number combination of a specified lengthfunction Fun_text1 ($num 1, $num 2, $STR){Return (Preg_match ("/^[a-za-z0-9]{". $num 1. ","

Introduction to PHP development with Ajax

Asynchronous JavaScript and XML (asynchronous JavaScript and Xml,ajax) are undoubtedly the most popular new WEB technologies. In this article we will use PHP and simple Ajax Toolkit (Sajax) to create an easy photo album as an online Web application.

PHP Draws a custom graphic and vector map of 3D graphics

This article introduces the custom and vector diagram examples. First draw a three-pointed star, respectively, by "front", "Back" and three "side" composition. Custom Polygon Code: Require_once (' image/3d.php ');$image = new Image_3d

Make a friendly 404 error page with PHP

If the user who is visiting your site temporarily appears unable to access the page for a variety of reasons, how to give him a friendly reply, and you know that this error occurred, look at the following procedure, is used to customize the 404

A memory overflow that PHP objects reference to each other

One of the great benefits of using scripting languages is that you can take advantage of the automatic garbage collection mechanism it has (freeing up memory). You don't need to do any free memory processing after using the variable, PHP will help

Further explanation of file upload process with PHP

Uploading files to the server is a technique that we often use when doing projects. Do know that ASP development, ASP upload file is very resistant to, at least need to borrow a group of other means, such as their own VB code, the use of free upload

XML pull mode parsing in PHP

PHP 5 introduces a new class XMLReader for reading Extensible Markup Language (extensible Markup language,xml). Unlike the SimpleXML or the Document Object Model,dom, XMLReader operates in streaming mode. That is, it reads the document from

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