How do i include two php files?
I am have trouble including files containing functions. I have a file called blog.php that runs the following: Show
The blog.php file is in the blog folder. Inside the blog folder is an admin folder containing an index.php file with the following code:
This should allow me to call the blog.php which then calls the db.php file which contains my database connection functions but I am getting an error that the connect function is undefined . It's trying to require db.php from the blog>admin folder, not from where the blog.php file is located (which is the same directory as db.php)? How can I fix this? asked Sep 2, 2013 at 18:19
2 You have a couple of options here - either by changing your relative links to properly reach up to the folder they are supposed to be in, or by changing the current working directory to the appropriate folder using the chdir() method. You could also use absolute paths. How you should change your relative links is dependent on where in the directory structure you are accessing the file from... Assuming you're hitting your blog file something like this: http://www.site.com/blog/blog.php And that your Admin folder is Inside the blog folder; I would include the files like so:
Again - assuming that both of these files are inside of the admin folder inside of the blog folder; I.E. root/blog/admin/db.php This is how I am interpreting what you are saying... answered Sep 2, 2013 at 18:26
DigitalJedi805DigitalJedi805 1,4783 gold badges16 silver badges40 bronze badges 2 (PHP 4, PHP 5, PHP 7, PHP 8) The The documentation below also applies to require. Files are included based on the file path given or, if none is given, the include_path specified.
If the file isn't found in the include_path, Note that both If a path is defined — whether absolute (starting with a drive letter or For more information on how PHP handles including files and the include path, see the documentation for include_path. When a file is included, the code it contains inherits the variable scope of the line on which the include occurs. Any variables available at that line in the calling file will be available within the called file, from that point forward. However, all functions and classes defined in the included file have the global scope. Example #1 Basic
= 'green';
If the include occurs inside a function within the calling file, then all of the code contained in the called file will behave as though it had been defined inside that function. So, it will follow the variable scope of that function. An exception to this rule are magic constants which are evaluated by the parser before the include occurs. Example #2 Including within functions
'vars.php'; When a file is included, parsing drops out of PHP mode and into HTML mode at the beginning of the target file, and resumes again at the end. For this reason, any code inside the target file which should be executed as PHP code must be enclosed within valid PHP start and end tags. If "URL include wrappers" are enabled in PHP, you can specify the file to be included using a URL (via HTTP or other supported wrapper - see Supported Protocols and Wrappers for a list of protocols) instead of a local pathname. If the target server interprets the target file as PHP code, variables may be passed to the included file using a URL request string as used with HTTP GET. This is not strictly speaking the same thing as including the file and having it inherit the parent file's variable scope; the script is actually being run on the remote server and the result is then being included into the local script. Example #3
include 'http://www.example.com/file.txt?foo=1&bar=2';// Won't work; looks for a file named 'file.php?foo=1&bar=2' on the Warning Security warningRemote file may be processed at the remote server (depending on the file extension and the fact if the remote server runs PHP or not) but it still has to produce a valid PHP script because it will be processed at the local server. If the file from the remote server should be processed there and outputted only, readfile() is much better function to use. Otherwise, special care should be taken to secure the remote script to produce a valid and desired code. See also Remote files, fopen() and file() for related information. Handling Returns: Because Example #4 Comparing return value of include
Example #5
= 'PHP'; If there are functions defined in the included file, they can be used in the main file independent if they are before return or after. If the file is included twice, PHP will raise a fatal error because the functions were already declared. It is recommended to use include_once instead of checking if the file was already included and conditionally return inside the included file. Another way to "include" a PHP file into a variable is to capture the output by using the
Output Control Functions with Example #6 Using output buffering to include a PHP file into a string
get_include_contents($filename) { In order to automatically include files within scripts, see also the auto_prepend_file and auto_append_file configuration options in php.ini.
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"Own value before: "; How can we connect two files in PHP?It is possible to insert the content of one PHP file into another PHP file (before the server executes it), with the include or require statement. The include and require statements are identical, except upon failure: require will produce a fatal error (E_COMPILE_ERROR) and stop the script.
How do I add one file to another in PHP?Including a PHP File into Another PHP File
The include() and require() statement allow you to include the code contained in a PHP file within another PHP file. Including a file produces the same result as copying the script from the file specified and pasted into the location where it is called.
How do I call a PHP file from another folder?The easiest way to include a file from another folder is to use the absolute path (specify the full path to the file). For example, include "C:\\http\\lib\\script.. 2-demo. php is placed inside D:\http .. Accessing 2-demo. ... . Relative paths depend on the current working directory.. Can we include one PHP file multiple times?If the file is included twice, PHP will raise a fatal error because the functions were already declared. It is recommended to use include_once instead of checking if the file was already included and conditionally return inside the included file.
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