PHP · Theory

pow()

Theory

311/352

pow()

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

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

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

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

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

Exam tip

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

Example

<?php
// pow()
$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";
}

pow(): scores array, print avg, then high marks. Say the output.

Short notes

Defpow() — a short pow example in a college portal page.
Rulethe smallest pow example you can type
Traponly saying “pow” with no example
Usea college portal page

PHP · Theory

pow()

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Theory

311/352

pow()

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

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

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

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

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

Exam tip

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

Example

<?php
// pow()
$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";
}

pow(): scores array, print avg, then high marks. Say the output.

Short notes

Defpow() — a short pow example in a college portal page.
Rulethe smallest pow example you can type
Traponly saying “pow” with no example
Usea college portal page

pow()

Example

Short notes

Questions

pow()

Example

Short notes

Questions