Including $_SERVER['DOCUMENT_ROOT'] to load files outside of wordpress installation doesn't work remotely

1. What is $_ server [' Document_root ']?
2. What does $_ server mean in PHP?
3. What takes place when a file included using require_once is not found?
4. What is $_ server Request_uri?
5. What is $_ server Request_method == post?
6. What is $_ server Php_self?
7. How can I know my hostname in PHP?
8. How do I find my hostname in PHP?
9. How do I find my localhost IP in PHP?
10. What is difference between include and include once?
11. What is the difference between include () include_once () and require_once ()?
12. What is difference between include () require () and require_once ()?

What is $_ server [' Document_root ']?

The $_SERVER['DOCUMENT_ROOT'] provides: The document root directory under which the current script is executing, as defined in the server's configuration file. It doesn't provide the base path to your html folder; it provides the path to the executing file/script.

What does $_ server mean in PHP?

$_SERVER is a PHP super global variable which holds information about headers, paths, and script locations.

What takes place when a file included using require_once is not found?

In the case of the require_once(), if the file PHP file is missing, then a fatal error will arise and no output is shown and the execution halts.

What is $_ server Request_uri?

$_SERVER['REQUEST_URI'] contains the URI of the current page. So if the full path of a page is https://www.w3resource.com/html/html-tutorials.php, $_SERVER['REQUEST_URI'] would contain /html/html-tutorials. php. Following php code used $_SERVER['REQUEST_URI'] variable.

What is $_ server Request_method == post?

$_SERVER['REQUEST_METHOD'] contains the request method (surprise). $_POST contains any post data. It's possible for a POST request to contain no POST data.

What is $_ server Php_self?

The $_SERVER["PHP_SELF"] is a super global variable that returns the filename of the currently executing script. So, the $_SERVER["PHP_SELF"] sends the submitted form data to the page itself, instead of jumping to a different page. This way, the user will get error messages on the same page as the form.

How can I know my hostname in PHP?

The gethostname() function is an inbuilt function in PHP which returns the host or domain name for the local machine. This function is applicable after PHP 5.3. 0 before that there was another function called php_uname function. Parameters: This function doesn't accept any parameters.

How do I find my hostname in PHP?

See Also ¶

1. gethostbyname() - Get the IPv4 address corresponding to a given Internet host name.
2. gethostbyaddr() - Get the Internet host name corresponding to a given IP address.
3. php_uname() - Returns information about the operating system PHP is running on.

How do I find my localhost IP in PHP?

The simplest way to collect the visitor IP address in PHP is the REMOTE_ADDR. Pass the 'REMOTE_ADDR' in PHP $_SERVER variable. It will return the IP address of the visitor who is currently viewing the webpage.
...
Get the IP address of the website

1. <? php.
2. echo 'User IP Address - '. $_SERVER['REMOTE_ADDR'];
3. ?>

What is difference between include and include once?

The include_once statement includes and evaluates the specified file during the execution of the script. This is a behavior similar to the include statement, with the only difference being that if the code from a file has already been included, it will not be included again, and include_once returns true .

What is the difference between include () include_once () and require_once ()?

The only difference between the two is that require and its sister require_once throw a fatal error if the file is not found, whereas include and include_once only show a warning and continue to load the rest of the page.

What is difference between include () require () and require_once ()?

include() will throw a warning if it can't include the file, but the rest of the script will run. require() will throw an E_COMPILE_ERROR and halt the script if it can't include the file. The include_once() and require_once() functions will not include the file a second time if it has already been included.