Top "Require-once" questions

The PHP require_once function

Difference between require, include, require_once and include_once?

In PHP: When should I use require vs. include? When should I use require_once vs. include_once?

php include require require-once
relative path in require_once doesn't work

I have the following structure otsg > class > authentication.php > database.php > user.php > include > …

php warnings fatal-error require-once
Fatal error: require_once(): Failed opening required

I'm trying to run my online site on my local machine. I stumbled upon a problem. This is my htaccess …

php .htaccess xampp localhost require-once
Why is require_once so bad to use?

Everything I read about better PHP coding practices keeps saying don't use require_once because of speed. Why is this? …

php performance require-once
How does include path resolution work in require_once?

I was writing an web app in PHP, when I encountered a strange situation. To illustrate my problem, consider a …

php include include-path require-once
Using require_once for up directory not working

I am using require_once like this require_once('../mycode.php') I am developing a wordpress plugin. My plugin …

php directory require-once
how to allow require_once() to php file in wordpress

I have a web site made by wordpress and I made some php files that i want to execute and …

php wordpress .htaccess require-once
PHP error: open_basedir restriction in effect

I using this Yubico authentication PHP class: https://github.com/Yubico/php-yubico. I create php file test.php with this …

php require-once open-basedir
PHP require_once error when including file in parent folder

I have the following file structure -- Plugins -- inParent.php ---- Uploadify ------ inSame.php ------ Uploadify.php This …

php require-once
how to exclude a file after including it in php?

After we add a file inside Myfile.php with: require_once 'abc.php'; or include_once 'abc.php'; How we …

php require-once php-include