Global Variable/Array in PHP

The global variable is declared in the function instead of in the main as in C language.

<?PHP $my_global_array = array(); // Global array set up in main $my_global_variable; // Global variable set up in main . . . funtion a() { global $my_global_array, $my_global_variable; // declare the array and variable in main as global variable . . . } function b() { global $my_global_array; // only takes this global array as the global variable is not needed in this function . . . } ?>