Presentation On PHP File Inclusion
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PHP File Inclusion Presentation Transcript:
1.PHP File Inclusion
2.PHP File Inclusion
You can include the content of a PHP file into another PHP file before the server executes it. There are two PHP functions which can be used to included one PHP file into another PHP file.
The include() Function
The require() Function
3.This is a strong point of PHP which helps in creating functions, headers, footers, or elements that can be reused on multiple pages.
This will help developers to make it easy to change the layout of complete website with minimal effort.
If there is any change required then instead of changing thousand of files just change included file.
4.The include() Function
The include() function takes all the text in a specified file and copies it into the file that uses the include function. If there is any problem in loading a file then the include() function generates a warning but the script will continue execution.
Assume you want to create a common menu for your website. Then create a file menu.php with the following content.
5.Home
ebXML
AJAX
PERL
Now create as many pages as you like and include
this file to create header. For example now your
test.php file can have following content.
6.
?>
This is an example to show how to include PHP file!
7.This will produce following result
Home - ebXML - AJAX - PERL
This is an example to show how to include PHP file. You can include mean.php file in as many as files you like!
8.The require() Function
The require() function takes all the text in a specified file and copies it into the file that uses the include function. If there is any problem in loading a file then the require() function generates a fatal error and halt the execution of the script.
So there is no difference in require() and include() except they handle error conditions. It is recommended to use the require() function instead of include(),
9.because scripts should not continue executing if files are missing or misnamed.
You can try using above example with require() function and it will generate same result. But if you will try following two examples where file does not exist then you will get different results.
10.
?>
This is an example to show how to include wrong PHP file!
Download
PHP File Inclusion Presentation Transcript:
1.PHP File Inclusion
2.PHP File Inclusion
You can include the content of a PHP file into another PHP file before the server executes it. There are two PHP functions which can be used to included one PHP file into another PHP file.
The include() Function
The require() Function
3.This is a strong point of PHP which helps in creating functions, headers, footers, or elements that can be reused on multiple pages.
This will help developers to make it easy to change the layout of complete website with minimal effort.
If there is any change required then instead of changing thousand of files just change included file.
4.The include() Function
The include() function takes all the text in a specified file and copies it into the file that uses the include function. If there is any problem in loading a file then the include() function generates a warning but the script will continue execution.
Assume you want to create a common menu for your website. Then create a file menu.php with the following content.
5.Home
ebXML
AJAX
PERL
Now create as many pages as you like and include
this file to create header. For example now your
test.php file can have following content.
6.
?>
This is an example to show how to include PHP file!
7.This will produce following result
Home - ebXML - AJAX - PERL
This is an example to show how to include PHP file. You can include mean.php file in as many as files you like!
8.The require() Function
The require() function takes all the text in a specified file and copies it into the file that uses the include function. If there is any problem in loading a file then the require() function generates a fatal error and halt the execution of the script.
So there is no difference in require() and include() except they handle error conditions. It is recommended to use the require() function instead of include(),
9.because scripts should not continue executing if files are missing or misnamed.
You can try using above example with require() function and it will generate same result. But if you will try following two examples where file does not exist then you will get different results.
10.
?>
This is an example to show how to include wrong PHP file!
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