Type Hinting — PHP Technical Interview Questions & Answers

Type Hinting

Type Hinting

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

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

Code Examples for Type Hinting

Type Hinting — working example

<?php
// Type Hinting
$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";
}

Type Hinting: scores array, print avg, then high marks. Say the output.

How to Explain Type Hinting to an Interviewer

What is Type Hinting?

Used for a short Type Hinting example a college portal page Not just the heading

Give one small example of Type Hinting.

the smallest Type Hinting example you can type Type Hinting: scores array, print avg, then high marks

What mistake do beginners make with Type Hinting?

only saying “Type Hinting” with no example Show the fix

Where do you use Type Hinting?

a college portal page a short Type Hinting example