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In this lesson, we're going to do some more complicated work to show the data in multiple rows, the database exchanging data one, the while loop in this lesson, we will continue to drill down and use PHP and MySQL to write some simple and useful pages. We start with the database we created yesterday and display the data in the library, but we'll touch it a little bit. First, we use the following code to query the contents of the database. <html> <body> <?php $db = Mys ...
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It would be faster to enclose the string in single quotes instead of double quotes. Because PHP searches for variables in double-quoted strings, single quotes do not. Note that only echo can do this: it's a "function" that takes multiple strings as arguments, Echo is a language structure, not a real function, so the function with double quotes). 1, if you can define the class method as static, as far as the definition of static, it will speed up nearly 4 times. 2, $ row ['id'] speed ...
PHP is a great language for the fast-growing dynamic web pages. PHP also has the characteristics of junior programmers friendly, such as PHP do not need dynamic statement. However, these features may cause a programmer to unintentionally sneak a security vulnerability into a web application. There are a number of proven vulnerabilities in popular security mailing lists in PHP applications, but once you understand the basic types of vulnerabilities that are common in PHP applications, you'll find it equally as secure as any other language. In this article, I will detail in detail what will lead to security vulnerabilities ...
Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host technology Hall in the current Internet business rapid development period, new products springing up, Old product line new business is also constantly breaking and trying. This puts forward higher requirements for rapid development iterations. First, the basic operating environment for the development of new products, must be able to quickly build a lamp structure. ...
Intermediary trading http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host technology Hall recently followed the boss learn how to do the site, they bought a VPS, Plan to set up a website in the work of the usual study of the application to see the effect. The so-called practice of truth. The first problem that comes up is. PHP scripts are required to do something regularly. In fact, there are two ways to plan PHP tasks: 1.
Write your own PHP image upload and generate thumbnail function Please refer to the function is divided into three parts First, PHP image upload function Second, PHP generate thumbnail function Third, PHP message prompt function PHP image upload function is as follows: function img_upload ( $ form_name, $ size, $ dir, $ file_name, $ width, $ height) {// file domain name, file size limit, file storage path, thumbnail width, thumbnail height ...
This article will illustrate the YII framework with a concrete example that allows readers to learn how to use the YII framework to create their own WEB applications in real-world cases, thus having a more realistic experience with this excellent PHP framework. What is YII? Yii is a high-performance, component-based PHP Framework for rapid development of WEB applications. Yii derives its name from the acronym "Yes It is". This is a sure answer to many questions about the framework: "Is it fast?" Is it safe? ...
Yii is a component-based, high-performance PHP Framework for developing large WEB applications. In web development Yii can maximize code reuse, greatly improve the speed of development. The name Yii (pronunciation is Yee or [JI:], should be "easy" pronunciation) is representative of the easy, efficient (effcient) and extensible (extensible). This is the component-based, high-performance phphttp://www.aliyun.com/zixun/aggre ...
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