PHP Programming: The difference between require() and include()
Many friends ask me what’s the difference between require() and include(). Here is the explaination from PHP manual.
From PHP manual:-
require() and include() are identical in every way except how they handle failure. include() produces a Warning while require() results in a Fatal Error. In other words, don’t hesitate to use require() if you want a missing file to halt processing of the page. include() does not behave this way, the script will continue regardless. Be sure to have an appropriate include_path setting as well.
So that means, if you want to ensure that file1.php must be read before execute anything else, then you should use require.
If you just want to load a ‘not that important’ template header then you can use include function.
Tags: function include, function require, include, Open Source, PHP, php function, programming, require
Posted at October 1st, 2006 by chua
If you think this article helps you to solve your problem and clear your headache, feel free to buy me a drink :)
May 16th, 2007 at 9:30 pm
HEllo dear,
This is the very good and simple diff. every one can understood it from very easily.
Thanks vinod
June 29th, 2007 at 2:41 am
Indeed !!!
Finally a simple explanation for a simple thing.
Thank You
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December 17th, 2007 at 10:57 pm
it’s the simplest way i’ve ever read about that differece
thanks for your simple explanation
June 7th, 2008 at 2:40 pm
i want php programming with explanation
November 28th, 2008 at 2:43 am
This was good, but, I have to say that post #4 (by “pclfw”) on this page actually gives a better explanation:
http://www.daniweb.com/forums/thread25930.html
October 3rd, 2009 at 4:47 am
gizg: pclfw’s post is incorrect. When using require, PHP will not look for them before parsing the document. An easy way to test this is the following code:
File: test.php
File: no.php
File: yes.php
Create these files with this code and then visit test.php. What happens? The page displays NO! because it only got no.php
October 5th, 2009 at 8:20 pm
hello,
this is very useful for php programmer.
December 2nd, 2009 at 7:53 pm
Great!!!