You can use the $GLOBAL array in your code to define global variables, for example $GLOBAL[‘variable’] = ‘value’;
You can refer to global variables within a function by using the $GLOBALS keyword, for example $GLOBALS[‘variable’] = ‘value’;
Define it outside the function: By defining global variables at the top of a PHP file, you can access that global variable throughout the entire script.
By using the define function, you can define global constants in your script, like define(‘CONSTANT_NAME’, ‘value’); These constants will be available throughout the entire script.
By using the static keyword, you can define static variables within a function that will hold their value between function calls.
