What is the difference between include and require in php

The difference between include and require in php is: when include introduces a file, if it encounters an error, it will give a prompt and continue to run the following code; while require when introducing a file, if it encounters If an error occurs, a prompt will be given and the code below will stop running.

For the include() statement, the file must be read and evaluated every time when executing it; for require(), the file only Processed once (in effect, the file contents replace the require() statement).

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require() is used like:

require("myfile.php")

This statement is usually placed in the PHP script program The front. Before the PHP program is executed, it will first read the file introduced by the require() statement, making it a part of the PHP script file.

include() is used in the same way as require, such as:

include("myfile.php")

This statement is generally placed in the processing section of flow control.

include When importing a file, if an error is encountered, a prompt will be given and the code below will continue to run.

require When importing a file, if an error is encountered, a prompt will be given and the code below will stop running.

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