Creating an empty 2D array in PHP?

Question

I know that arrays are created dynamically, and creating them ahead of time isn't really necessary, but how would one do that with a 2D array? The same way?

(for$j) { for($i)     {     $array[j][i] = "data";     } } 

Something like that? Obviously real for loops, of course.

Answer 1

At its absolute simplest, a 2D dimensional array can be created as:

<?php     $emptyArray = array(array()); ?> 

Or as of PHP 5.4 you can also use:

<?php     $emptyArray = [[]]; ?>