How can global variables be created and accessed in PHP?

Global variables in PHP can be created by using the global keyword to declare a variable within a function as global. This allows the variable to be accessed and modified outside of the function scope. To access a global variable, you can simply refer to it using the global keyword followed by the variable name. 

$globalVar = "I am a global variable";

function myFunction() {
    global $globalVar;
    echo $globalVar;
}

myFunction(); // Output: I am a global variable

Keywords

global variables PHP scope variable declaration variable access

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