Variable scope ¶ The scope of a variable is the context within which it is defined. PHP has a function scope and a global scope. Any variable defined outside a function is limited to the …

Jul 11, 2025 · Global variables refer to any variable that is defined outside of the function. Global variables can be accessed from any part of the script i.e. inside and outside of the function.

An associative array containing references to all variables which are currently defined in the global scope of the script. The variable names are the keys of the array.

PHP $GLOBALS The $GLOBALS superglobal is an array that contains references to all global variables of the script. PHP superglobals are built-in variables that are always accessible in all …

Apr 16, 2025 · PHP global keyword tutorial shows how to use global variables in PHP. Learn variable scope with practical examples.

Welcome to phponline.in, your trusted PHP learning hub. In this detailed course page, we’ll explore PHP Global Variables, which are a fundamental concept in PHP programming. …

In PHP, any variable that can be accessed from anywhere in a PHP script is called as a global variable. If the variable is declared outside all the functions or classes in the script, it becomes …

Feb 2, 2024 · We will introduce a method to declare a global variable in PHP using the global keyword. This method will set the global scope of the variable declared outside of a function to …