include and require

Yesterday to interview a PHP development, see the written test paper on such a topic:What is the difference between include and require?This topic can be referred to in the PHP development interview must test the topic, the Internet also has various

Go to the script house http://www.jb51.net/article/22467.htmThe use of require is as follows require("MyRequireFile.php"); . This function is usually placed at the front of the PHP program, and before the PHP program executes, it is read into the

The difference between include () and require () in PHP. There are two methods to reference files: require and include. The two methods provide different elasticity. The use of require is as follows: require (MyRequireFile. php );. This function is

There are two ways to refer to a file: Require and include. Two ways to provide different use elasticity. Require use methods such as require ("myrequirefile.php");. This function is usually placed at the front of the PHP program, and before the PHP

Differences between include () and require () in php 1. include has a return value, but require does not. 2. include () includes and runs the specified file. when the processing fails, include () generates a warning. the imported program

if ($something) { Include ("Somefile"); } Copy CodeHowever, regardless of the $something value, the following code will include the file somefile into the file: if ($something) {

There are too many differences between the include and require in PHP. But is it true that today we have a concrete example of a simple analysis to verify that Edit the command.php file first echo ' Hello '. Php_eol; Then edit the console.php file

The difference between include () and require () is believed to be the most basic problem in PHP. it is also a mandatory question for many companies during interviews. Let's review: Require (): If the file does not exist, a fatal error is reported.

This article describes in detail the file call tests in php, including include (), require (), include_once (), and require_once. Include This article describes in detail the file call tests in php, including include (), require (), include_once (),

Comparison between include () and require () in php. Php's require () and include () are not significantly different in terms of performance. The only difference is that the file must be read and evaluated each time when the include () is executed;

Nclude ()The include () statement includes and runs the specified file. The following documents also apply to require (). These two structures are exactly the same in addition to how they handle failures. The include () generates a warning and

are used to include and run the file.The difference 1:include () only generates a warning that the program will continue to run;Require () generates a fatal error and the program stops running.The difference between 2:include () can be referenced

　　Require, such as: Require ("myfile.php"), require statements are usually placed at the very front of the PHP script. Before the PHP program executes, it will read into the file introduced by the Require () statement, making it part of the php

Include and require absolute paths and relative paths in PHP, too derequire When writing a PHP program, you often need to use include or require to include other files. However, if there are too many files in each file, a path problem occurs. The

The performance of the Require () statement is similar to include (), which includes and runs the specified file.The difference is that the include () statement is read and evaluated each time the file is executed, and for require (), the file is

The performance of the Require () statement is similar to include (), which includes and runs the specified file. The difference is that, for the include () statement, it is read and evaluated every time the file is executed, whereas for require (),

  Include () The include () statement includes and runs The specified file.   The following documents also apply to require (). These two structures are identical except for how to handle failures. Include () generates a warning and require ()

The order of loading is different: the Require is loaded and then executed, and the include is executed to this statement before loading; The level at which the error is raised is different: require throws a fatal error if it is loaded, causing

1, include () include_once () introduced the file, if the file does not exist, the system will report a warning level error, the program continues to execute.2, Require () require_once () introduced a file, if the file does not exist, the system

This article describes in detail the file call tests in php, including include (), require (), include_once (), require_once (), and many other exchange calls, for more information, see. 7.3.1 use of Include, can contain the same file multiple times