Indexed Array

If you can teach Indexed Array using $student['roll'], you know it. If you only know the heading, you don’t.

Indexed Array on the board — ['name'=>'Asha','roll'=>12]. Then say what $student['roll'] looks like after.

Without Indexed Array, a class list gets messy and $student['roll'] is hard to trust.

Use Indexed Array when $student['roll'] must stay clear. If a simpler PHP step works, use that instead.

Don’t do this with Indexed Array — mixing 0-based and named keys blindly. Interviewers spot it in ten seconds.

After Indexed Array, Priya should still remember mixing 0-based and named keys blindly.

Close Indexed Array with — “If I skip it, $student['roll'] goes wrong like this: mixing 0-based and named keys blindly.”