PHP · Theory

Generators

Theory

332/352

Generators

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

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

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

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

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

Exam tip

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

Example

<?php
// Generators
$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";
}

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

Short notes

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

PHP · Theory

Generators

← All stacks

Theory

332/352

Generators

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

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

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

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

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

Exam tip

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

Example

<?php
// Generators
$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";
}

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

Short notes

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

Generators

Example

Short notes

Questions

Generators

Example

Short notes

Questions