PHP · Theory

str_getcsv()

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Theory

230/352

str_getcsv()

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

For str_getcsv(), the PHP runtime is in play. Don’t blame it until you have traced Amit walking through str_getcsv.

str_getcsv() exists so Amit can keep Amit walking through str_getcsv correct in a viva board.

Amit ships str_getcsv() in a viva board. That is the use case worth saying.

str_getcsv() miss — skipping the failure case for str_getcsv. Fix it before you talk about advanced PHP.

After str_getcsv(), Amit should still remember skipping the failure case for str_getcsv.

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

Exam tip

Board: Amit walking through str_getcsv. Dry-run str_getcsv(). Name the trap: skipping the failure case for str_getcsv.

Example

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

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

Short notes

Defstr_getcsv() — Amit uses it for Amit walking through str_getcsv in a viva board.
Rulestr_getcsv() → one str_getcsv step Amit can write from memory.
Rememberstr_getcsv() + the PHP runtime (a viva board).
Usestr_getcsv() in a viva board (Amit walking through str_getcsv).
Trapstr_getcsv() — skipping the failure case for str_getcsv.
Exstr_getcsv() → Amit walking through str_getcsv.

PHP · Theory

str_getcsv()

← All stacks

Theory

230/352

str_getcsv()

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

For str_getcsv(), the PHP runtime is in play. Don’t blame it until you have traced Amit walking through str_getcsv.

str_getcsv() exists so Amit can keep Amit walking through str_getcsv correct in a viva board.

Amit ships str_getcsv() in a viva board. That is the use case worth saying.

str_getcsv() miss — skipping the failure case for str_getcsv. Fix it before you talk about advanced PHP.

After str_getcsv(), Amit should still remember skipping the failure case for str_getcsv.

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

Exam tip

Board: Amit walking through str_getcsv. Dry-run str_getcsv(). Name the trap: skipping the failure case for str_getcsv.

Example

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

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

Short notes

Defstr_getcsv() — Amit uses it for Amit walking through str_getcsv in a viva board.
Rulestr_getcsv() → one str_getcsv step Amit can write from memory.
Rememberstr_getcsv() + the PHP runtime (a viva board).
Usestr_getcsv() in a viva board (Amit walking through str_getcsv).
Trapstr_getcsv() — skipping the failure case for str_getcsv.
Exstr_getcsv() → Amit walking through str_getcsv.

str_getcsv()

Example

Short notes

Questions

str_getcsv()

Example

Short notes

Questions