PHP · Theory

rad2deg()

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Theory

317/352

rad2deg()

If you can teach rad2deg() using rad2deg on Zara's board, you know it. If you only know the heading, you don’t.

For rad2deg(), a .php page is in play. Don’t blame it until you have traced rad2deg on Zara's board.

Without rad2deg(), lab hour gets messy and rad2deg on Zara's board is hard to trust.

rad2deg() shows up in lab hour. Name rad2deg on Zara's board, not “a real-world scenario”.

rad2deg() trap — copy-pasting rad2deg without a dry-run. Zara loses marks for that every viva.

After rad2deg(), Zara should still remember copy-pasting rad2deg without a dry-run.

Close rad2deg() with: “If I skip it, rad2deg on Zara's board goes wrong like this: copy-pasting rad2deg without a dry-run.”

Exam tip

For rad2deg(): definition + lab hour + one failure.

Example

<?php
// rad2deg()
$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";
}

rad2deg(): scores array, print avg, then high marks. Say the output.

Short notes

Defrad2deg() — Zara uses it for rad2deg on Zara's board in lab hour.
Rulerad2deg() → one rad2deg step Zara can write from memory.
Rememberrad2deg() + a .php page (lab hour).
Userad2deg() in lab hour (rad2deg on Zara's board).
Traprad2deg() — copy-pasting rad2deg without a dry-run.
Exrad2deg() → rad2deg on Zara's board.

PHP · Theory

rad2deg()

← All stacks

Theory

317/352

rad2deg()

If you can teach rad2deg() using rad2deg on Zara's board, you know it. If you only know the heading, you don’t.

For rad2deg(), a .php page is in play. Don’t blame it until you have traced rad2deg on Zara's board.

Without rad2deg(), lab hour gets messy and rad2deg on Zara's board is hard to trust.

rad2deg() shows up in lab hour. Name rad2deg on Zara's board, not “a real-world scenario”.

rad2deg() trap — copy-pasting rad2deg without a dry-run. Zara loses marks for that every viva.

After rad2deg(), Zara should still remember copy-pasting rad2deg without a dry-run.

Close rad2deg() with: “If I skip it, rad2deg on Zara's board goes wrong like this: copy-pasting rad2deg without a dry-run.”

Exam tip

For rad2deg(): definition + lab hour + one failure.

Example

<?php
// rad2deg()
$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";
}

rad2deg(): scores array, print avg, then high marks. Say the output.

Short notes

Defrad2deg() — Zara uses it for rad2deg on Zara's board in lab hour.
Rulerad2deg() → one rad2deg step Zara can write from memory.
Rememberrad2deg() + a .php page (lab hour).
Userad2deg() in lab hour (rad2deg on Zara's board).
Traprad2deg() — copy-pasting rad2deg without a dry-run.
Exrad2deg() → rad2deg on Zara's board.

rad2deg()

Example

Short notes

Questions

rad2deg()

Example

Short notes

Questions