Magic Constants — PHP Technical Interview Questions & Answers

Magic Constants

Magic Constants

  • Magic Constants is a PHP topic. In plain words you use it for a short Magic Constants example in a college portal page. Don’t start with a slogan — start with that picture.
  • Smallest example: the smallest Magic Constants example you can type. Type it, run it, and say what you see. If you can do that from memory, you know Magic Constants.
  • From the example next to this theory: Magic Constants: scores array, print avg, then high marks.
  • Trap: only saying “Magic Constants” with no example. Fix that before you talk about advanced PHP.
  • Viva: what is Magic Constants? Then show the smallest Magic Constants example you can type. Then name the trap.

Technical Interview Tip: What is Magic Constants? Show this: the smallest Magic Constants example you can type. Trap: only saying “Magic Constants” with no example.

Code Examples for Magic Constants

Magic Constants — working example

<?php
// Magic Constants
$scores = [80, 90, 70];
$avg = array_sum($scores) / count($scores);
echo "avg=" . number_format($avg, 1) . "\n";
foreach ($scores as $s) {
  if ($s >= 80) echo "high: $s\n";
}

Magic Constants: scores array, print avg, then high marks. Say the output.

How to Explain Magic Constants to an Interviewer

What is Magic Constants?

Used for a short Magic Constants example a college portal page Not just the heading

Give one small example of Magic Constants.

the smallest Magic Constants example you can type Magic Constants: scores array, print avg, then high marks

What mistake do beginners make with Magic Constants?

only saying “Magic Constants” with no example Show the fix

Where do you use Magic Constants?

a college portal page a short Magic Constants example