Multidimensional Array

Multidimensional Array is a PHP topic. In plain words you use it for $student['roll'] in a class list. Don’t start with a slogan — start with that picture.

Smallest example: ['name'=>'Asha','roll'=>12]. Type it, run it, and say what you see. If you can do that from memory, you know Multidimensional Array.

From the example next to this theory — Multidimensional Array — pHP arrays are ordered maps.

Trap — mixing 0-based and named keys blindly. Fix that before you talk about advanced PHP.

Viva — what is Multidimensional Array? Then show ['name'=>'Asha','roll'=>12]. Then name the trap.