PHP · Theory

floor()

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Theory

307/352

floor()

Zara only reaches for floor() when a floor dry-run has to stay correct in a viva board.

Keep floor() small. Zara should finish a floor dry-run in a few lines, not a 40-line dump.

Skip floor() and skipping the failure case for floor shows up in a viva board.

Zara ships floor() in a viva board. That is the use case worth saying.

If a floor dry-run breaks under floor(), check skipping the failure case for floor first.

floor() is not a lonely heading. Zara ties it to a floor dry-run.

Close floor() with — “If I skip it, a floor dry-run goes wrong like this: skipping the failure case for floor.”

Exam tip

For floor(): definition + a viva board + one failure.

Example

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

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

Short notes

Deffloor() — Zara uses it for a floor dry-run in a viva board.
Rulefloor() → one floor step Zara can write from memory.
Rememberfloor() + Apache/Nginx (a viva board).
Usefloor() in a viva board (a floor dry-run).
Trapfloor() — skipping the failure case for floor.
Exfloor() → a floor dry-run.

PHP · Theory

floor()

← All stacks

Theory

307/352

floor()

Zara only reaches for floor() when a floor dry-run has to stay correct in a viva board.

Keep floor() small. Zara should finish a floor dry-run in a few lines, not a 40-line dump.

Skip floor() and skipping the failure case for floor shows up in a viva board.

Zara ships floor() in a viva board. That is the use case worth saying.

If a floor dry-run breaks under floor(), check skipping the failure case for floor first.

floor() is not a lonely heading. Zara ties it to a floor dry-run.

Close floor() with — “If I skip it, a floor dry-run goes wrong like this: skipping the failure case for floor.”

Exam tip

For floor(): definition + a viva board + one failure.

Example

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

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

Short notes

Deffloor() — Zara uses it for a floor dry-run in a viva board.
Rulefloor() → one floor step Zara can write from memory.
Rememberfloor() + Apache/Nginx (a viva board).
Usefloor() in a viva board (a floor dry-run).
Trapfloor() — skipping the failure case for floor.
Exfloor() → a floor dry-run.

floor()

Example

Short notes

Questions

floor()

Example

Short notes

Questions