What Is Require In Php

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php on the difference between require and include

The include () or require () function lets you insert the contents of a file in the file before the server executes the php tutorial file. These two functions are the same in all other respects, except that they handle errors differently. The include () function generates a warning (but the script continues to execute), whereas the require () function generates a fatal error (the script stops executing after an error occurs). <html> <body ...

PHP operation MySQL 3rd pass the third day

In this lesson, we want to learn how to increase the intelligent processing capacity of the Web page. Basic functions Welcome to the third and final lesson of this tutorial. If you've learned the first and second lessons, you've mastered the basics of installing and programming MySQL and PHP. Here are some of the other functions of PHP that might be useful to you and make your development process simpler.   First, let's look at the document. You should know some basic concepts of the header file, right? The header file is an external file whose contents are included in the main program. ...

20 of 2014's best PHP frameworks

For Web developers, PHP is a very powerful and popular programming language. Many of the world's top websites are based on PHP. In this article, let's review the 20 http://www.aliyun.com/zixun/aggregation/33721.html"> PHP frameworks of the year 2014. Every developer knows that having a strong framework allows developers to work Become faster, safer and more efficient ... Choose a suitable framework before developing your project ...

Recommended: learn PHP day through the original original tutorial

The following entry path to bring you into PHP Description: I am here temporarily Apache web server and MY SQL as a WEB server and database under php-4.3.3 environment to do the program. Of course, to build a simple visit and visit PHPMYADMIN essential database Here need to understand the basics of HTML! No HTML basics! You can go to Baidu or GOOGLE search! Very simple! Not much to say here, let's get started! We put PHP entry as a ...

How to individually upgrade PHP 5.1 to 5.2 or later in CentOS

After we install and configure the server, we often need to maintain the current resources and some upgrades, and some new features also require a new version of support, today we try to upgrade the wizard CentOS separately PHP 5.1 to 5.2 or higher version of the current phphttp:// Www.aliyun.com/zixun/aggregation/6274.html "> Official release of the latest stable version of PHP 5.4.9, you can get through the link below!" PHP 5.4 ...

Mitigate enterprise risk from PHP hyper-global variables

This article describes the vulnerabilities of PHP applications and how attackers can use PHP hyper-global variables to perform web attacks. And explain what is the PHP Super global variable and the risks it poses. 498) this.width=498 ' OnMouseWheel = ' javascript:return big (This) ' border= ' 0 ' alt= "mitigate enterprise risk from PHP hyper-global variables" Src=&qu ...

To be a part of what a PHP expert needs to experience

This article is the 1th of 4 posts in the "Becoming a PHP Professional" series. When browsing various PHP-related blogs, such as Quora, Google Groups, newsletters, and magazines, I often notice the level of skill differentiation. The question is similar to "How do I connect to the MySQL database?" Or how do I extend my messaging system to send more than 10,000 messages per hour without introducing new servers? "I divide PHP capabilities into 4 levels, which may apply ...

Fundamentals: PHP easy to distinguish between the function of the distinction between methods and significance

The difference between 1.echo and print echo and print in PHP basically the same function (output), but there are still some nuances between the two. echo output does not return a value, but print returns the value, when its implementation fails to return flase. Therefore, it can be used as a normal function. For example, after executing the following code, the value of variable $ r will be 1. Copy PHP content to the clipboard PHP code: $ r = print "Hello World"; This means print ...

Fourteen PHP head start to make a big headache summary

Fourteen make PHP beginners a big headache Summary Today for everyone to give PHP beginners a headache big summary, the following 14 questions hope for PHP beginners to help. 1, the page can not be passed variables get, post, session Automatic global variables in the latest php version is turned off, so to get over the variables from the previous page to use $ _GET ['foo'], $ _ POST [ 'foo'], $ _ SESSION ['foo']. Of course it can be ...

53 points to improve the efficiency of PHP programming

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 ...

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