PHP · Theory

round()

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Theory

308/352

round()

Asha only reaches for round() when Asha walking through round has to stay correct in a campus project.

Do round() once by hand. one round step Asha can write from memory. Change one input. Say the new result out loud.

round() exists so Asha can keep Asha walking through round correct in a campus project.

Asha ships round() in a campus project. That is the use case worth saying.

round() miss — copy-pasting round without a dry-run. Fix it before you talk about advanced PHP.

Place round() next to nearby PHP work — one round step Asha can write from memory is the link.

Close round() with: “If I skip it, Asha walking through round goes wrong like this: copy-pasting round without a dry-run.”

Exam tip

Say round() in one breath, then one round step Asha can write from memory, then copy-pasting round without a dry-run.

Example

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

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

Short notes

Defround() — Asha uses it for Asha walking through round in a campus project.
Ruleround() → one round step Asha can write from memory.
Rememberround() + a .php page (a campus project).
Useround() in a campus project (Asha walking through round).
Trapround() — copy-pasting round without a dry-run.
Exround() → Asha walking through round.

PHP · Theory

round()

← All stacks

Theory

308/352

round()

Asha only reaches for round() when Asha walking through round has to stay correct in a campus project.

Do round() once by hand. one round step Asha can write from memory. Change one input. Say the new result out loud.

round() exists so Asha can keep Asha walking through round correct in a campus project.

Asha ships round() in a campus project. That is the use case worth saying.

round() miss — copy-pasting round without a dry-run. Fix it before you talk about advanced PHP.

Place round() next to nearby PHP work — one round step Asha can write from memory is the link.

Close round() with: “If I skip it, Asha walking through round goes wrong like this: copy-pasting round without a dry-run.”

Exam tip

Say round() in one breath, then one round step Asha can write from memory, then copy-pasting round without a dry-run.

Example

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

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

Short notes

Defround() — Asha uses it for Asha walking through round in a campus project.
Ruleround() → one round step Asha can write from memory.
Rememberround() + a .php page (a campus project).
Useround() in a campus project (Asha walking through round).
Trapround() — copy-pasting round without a dry-run.
Exround() → Asha walking through round.

round()

Example

Short notes

Questions

round()

Example

Short notes

Questions