PHP · Theory

intdiv()

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Theory

321/352

intdiv()

intdiv() is simple if you keep it on paper. Sara uses it for Sara walking through intdiv in a viva board.

Keep intdiv() small. Sara should finish Sara walking through intdiv in a few lines, not a 40-line dump.

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

Use intdiv() when Sara walking through intdiv must stay clear. If a simpler PHP step works, use that instead.

Don’t do this with intdiv() — skipping the failure case for intdiv. Interviewers spot it in ten seconds.

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

One breath for intdiv(), then Sara walking through intdiv, then skipping the failure case for intdiv. Sit down.

Exam tip

Say intdiv() in one breath, then one intdiv step Sara can write from memory, then skipping the failure case for intdiv.

Example

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

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

Short notes

Defintdiv() — Sara uses it for Sara walking through intdiv in a viva board.
Ruleintdiv() → one intdiv step Sara can write from memory.
Rememberintdiv() + Apache/Nginx (a viva board).
Useintdiv() in a viva board (Sara walking through intdiv).
Trapintdiv() — skipping the failure case for intdiv.
Exintdiv() → Sara walking through intdiv.

PHP · Theory

intdiv()

← All stacks

Theory

321/352

intdiv()

intdiv() is simple if you keep it on paper. Sara uses it for Sara walking through intdiv in a viva board.

Keep intdiv() small. Sara should finish Sara walking through intdiv in a few lines, not a 40-line dump.

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

Use intdiv() when Sara walking through intdiv must stay clear. If a simpler PHP step works, use that instead.

Don’t do this with intdiv() — skipping the failure case for intdiv. Interviewers spot it in ten seconds.

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

One breath for intdiv(), then Sara walking through intdiv, then skipping the failure case for intdiv. Sit down.

Exam tip

Say intdiv() in one breath, then one intdiv step Sara can write from memory, then skipping the failure case for intdiv.

Example

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

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

Short notes

Defintdiv() — Sara uses it for Sara walking through intdiv in a viva board.
Ruleintdiv() → one intdiv step Sara can write from memory.
Rememberintdiv() + Apache/Nginx (a viva board).
Useintdiv() in a viva board (Sara walking through intdiv).
Trapintdiv() — skipping the failure case for intdiv.
Exintdiv() → Sara walking through intdiv.

intdiv()

Example

Short notes

Questions

intdiv()

Example

Short notes

Questions