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After installing PHP and MySQL on the Linux CentOS system, for convenience, PHP and MySQL commands need to be added to the system commands, if you do not add to the environment variable, execute "
This article mainly introduces the Php+mysql development of a simple online question bank, online to do the problem system, has a certain reference value, now share to everyone, the need for friends can refer to
Question Bank, for educational institutions, schools, online education, is very necessary, there are many third-party online database
MYSQL + PHP timing control function. For example, I have set the time to nbsp; 18:00:00 to nbsp; 18:00:00 to publish an article. Publishing is disabled automatically when the server time reaches 18:00:00. How to implement such a function ?, When publishing the article, determine the timing control function of nb MYSQL + PH
Environment constructionThe first step:64-bit system Apache, PHP, MySQL software downloadapache2.4http://www.apachelounge.com/download/win64/php5.5http://windows.php.net/qa/PHP 5.5 (5.5.17RC1)Just this version.Mysqlhttp://www.mysql.com/downloads/mysql/
First, install and configure MySQL
1.1 Execute Yum command to install MySQLYum-y install MySQL Mysql-server
1.2 Add MySQL to boot and start MySQL immediatelyChkconfig–levels 235 mysqld on/etc/init.d/mysqld Start
1.3 Set the MySQL
This example describes a simple voting system implemented by Php+mysql. Share to everyone for your reference, specific as follows:
It's a little long-winded, a little stupid, but it's practical.
Link MySQL:
For more information about PHP
The system, with the previous "ASP connection Access database login System" (Click to open the link) in the article of the ASP login system is exactly the same, but the programming language from ASP into PHP, the database from access into MySQL.
I. BASIC OBJECTIVES
First i
This article completes the complete Php+mysql member system function through a simple example. is a very practical application. The following steps are implemented:
First, the principle of membership system:Login--> Judge--> hold status (cookie or session)--> authentication status and its permissions
Second, the security of the member
A simple PHP tutorial MySQL tutorial exam system, the example method is to determine whether the topic array is empty, empty then from the question bank randomly removed 12 questions ID
Include './inc/header.php ';if ($_session[' arr '] = = ') {#判断题目数组是否为空, empty then randomly take out 12 questions ID from the question bank$sql = ' select * from ';$select
Label:1. Single Book Storage operationSimple Insert operation Note that the uniqueness of the primary key means that you cannot have a numbered bookThe client can check the existence of the book before inserting it and give it back to the user of course it can also be done directly and then parse the return result of SQL execution can also resolve the cause of the error and feedback to the user When data is submitted to the page, it is best to validate the submitted data to prevent errors in da
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