PHP · Theory

Operators

Theory

15/352

Operators

Operators is a PHP topic. In plain words you use it for a short Operators example in a college portal page. Don’t start with a slogan — start with that picture.

Smallest example: the smallest Operators example you can type. Type it, run it, and say what you see. If you can do that from memory, you know Operators.

From the example next to this theory — Operators: scores array, print avg, then high marks.

Trap — only saying “Operators” with no example. Fix that before you talk about advanced PHP.

Viva — what is Operators? Then show the smallest Operators example you can type. Then name the trap.

Exam tip

What is Operators? Show this: the smallest Operators example you can type. Trap: only saying “Operators” with no example.

Example

<?php
// Operators
$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";
}

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

Short notes

DefOperators — a short Operators example in a college portal page.
Rulethe smallest Operators example you can type
Traponly saying “Operators” with no example
Usea college portal page

PHP · Theory

Operators

← All stacks

Theory

15/352

Operators

Operators is a PHP topic. In plain words you use it for a short Operators example in a college portal page. Don’t start with a slogan — start with that picture.

Smallest example: the smallest Operators example you can type. Type it, run it, and say what you see. If you can do that from memory, you know Operators.

From the example next to this theory — Operators: scores array, print avg, then high marks.

Trap — only saying “Operators” with no example. Fix that before you talk about advanced PHP.

Viva — what is Operators? Then show the smallest Operators example you can type. Then name the trap.

Exam tip

What is Operators? Show this: the smallest Operators example you can type. Trap: only saying “Operators” with no example.

Example

<?php
// Operators
$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";
}

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

Short notes

DefOperators — a short Operators example in a college portal page.
Rulethe smallest Operators example you can type
Traponly saying “Operators” with no example
Usea college portal page

Operators

Example

Short notes

Questions

Operators

Example

Short notes

Questions