PHP Object-Oriented Learning Objectives: fully understand the three main features of abstraction, encapsulation, inheritance, and multi-state image targeting: encapsulation, inheritance, and Polymorphism. First of all, a brief understanding of
The PHPfgetcsv () function reads a row from the file pointer and parses the CSV field. Similar to PHPfgets (), the difference is that PHPfgetcsv () parses the rows read and finds fields in CSV format, and then returns an array containing these
Some experience in PHP
Author: snowai
Recently, projects in the hands are relatively idle. Come here and share some accumulated skills with you!1. PHP redirectionMethod 1: header ("Location: index. php ");Method 2: echo "script
Php generates a thumbnail code. For more information, see. the transfer process is relatively long because the image data volume is large, you often want to display a thumbnail of an image. although you can scale the image at will by specifying the
PHP4 COOKIE support explanation PHP4 COOKIE support explanation
To create a commercial site or a personal site with relatively complete functions, you often need to record the visitor's information. in PHP, two convenient methods are provided:
PHP implements the download function code, implements secure download, and hides the real address of the file. For more information, see wzskynet # 163.com.
· Php escapeshellcmd multi-byte encoding vulnerability
· Explain in detail the application
The problem occurs when the field name of the table in SQLServer is Chinese. the written query statement is tested in SQLServe and returned through a record. an error is returned when the SQL extension query in PHP is used.
I. problems:
The
There are four ways to generate XML files in PHP. For more information, see generate the following XML strings.
Xml code
The code is as follows:
Title1
Content1
2009-10-11
Title2
The previous mail () is no longer popular, so I put the recently used instances for memories. if you need a friend, you can refer to the previous mail (), which is no longer popular, so put the latest instance for memories.
The code is as follows:
PHP expressions for PHP learning
Expressions are the most important component of PHP. In PHP 3.0, almost everything you write is an expression. The simplest but precise definition of an expression is "anything with a value ". A simple example is
Because I wrote an article a few days ago and used the php-excel-reader class to import the excel content. By the way, some excel export problems may occur. you may want to know this because I wrote an article a few days ago, use the
When exporting data to excel, the number becomes scientific count. if you need it, you can refer to the following two situations.
1. insufficient length for excel cellsSolution:
The code is as follows:
// In the excel. php file$ ObjActSheet = $
Implement multi-level tree menu with PHP
// Tree directory structure template program
// Menu directory field description:
// Menu_id menu Project id
// Menu name
// Menu_grade Level 1: Main Menu 2: Level 2 ........
// Menu_superior top-level menu
This article describes how to set, use, and delete cookies in PHP and some restrictions on cookies. PHP supports cookies transparently and conveniently.
1. set Cookie
PHP uses the SetCookie function to set the Cookie. Note that Cookie is a part of
This article provides a detailed analysis of the methods and precautions for implementing persistent connections in php. For more information, see set_time_limit (0.
The sample code is as follows:
The code is as follows:
Echo "output once every
Section 5-clone /*
+ ------------------------------------------------------------------------------- +
| = This article is Haohappy read
>
| = Notes in the Classes and Objects chapter
| = Translation-oriented + personal experiences
| = Do not
This article has sorted out some ways for php to generate a QR code: 1. open APIs for google; 2. php class library PHPQRCode; 3. libqrencode; 4. for more information about QRcodePerlCGI & amp; PHPscripts, See section 1. open api for google
The
This article provides a detailed analysis of php running modes on various web servers. For more information, see
I. php running mode in apache
Php is common in apache.
Three working modes: CGI mode, FastCGI mode, and Apache module DLL
Comparison:
1
This article provides a detailed analysis of the methods used to obtain PHP warning error messages. For more information, see the following code:
The code is as follows:
/*** Update invalid characters and sending/sending quota information** @
The premise is to install the auth class library and the auth_http class library
The code is as follows:
Require_once ("Auth/HTTP. php ");// Set database connection options$ Auth_options = array ('Dsn '=> "mysql: // root: 1981427 @ localhost/
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