PHP · Theory

Lcfirst()

Theory

205/352

Lcfirst()

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

Lcfirst() order — meaning → one Lcfirst step Sara can write from memory → one limit. Dumping ten features helps nobody.

Without Lcfirst(), a viva board gets messy and Lcfirst on Sara's board is hard to trust.

Lcfirst() shows up in a viva board. Name Lcfirst on Sara's board, not “a real-world scenario”.

If Lcfirst on Sara's board breaks under Lcfirst(), check only reciting the name of Lcfirst first.

Lcfirst() is not a lonely heading. Sara ties it to Lcfirst on Sara's board.

Close Lcfirst() with — “If I skip it, Lcfirst on Sara's board goes wrong like this: only reciting the name of Lcfirst.”

Exam tip

Board: Lcfirst on Sara's board. Dry-run Lcfirst(). Name the trap: only reciting the name of Lcfirst.

Example

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

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

Short notes

DefLcfirst() — Sara uses it for Lcfirst on Sara's board in a viva board.
RuleLcfirst() → one Lcfirst step Sara can write from memory.
RememberLcfirst() + Apache/Nginx (a viva board).
UseLcfirst() in a viva board (Lcfirst on Sara's board).
TrapLcfirst() — only reciting the name of Lcfirst.
ExLcfirst() → Lcfirst on Sara's board.

PHP · Theory

Lcfirst()

← All stacks

Theory

205/352

Lcfirst()

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

Lcfirst() order — meaning → one Lcfirst step Sara can write from memory → one limit. Dumping ten features helps nobody.

Without Lcfirst(), a viva board gets messy and Lcfirst on Sara's board is hard to trust.

Lcfirst() shows up in a viva board. Name Lcfirst on Sara's board, not “a real-world scenario”.

If Lcfirst on Sara's board breaks under Lcfirst(), check only reciting the name of Lcfirst first.

Lcfirst() is not a lonely heading. Sara ties it to Lcfirst on Sara's board.

Close Lcfirst() with — “If I skip it, Lcfirst on Sara's board goes wrong like this: only reciting the name of Lcfirst.”

Exam tip

Board: Lcfirst on Sara's board. Dry-run Lcfirst(). Name the trap: only reciting the name of Lcfirst.

Example

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

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

Short notes

DefLcfirst() — Sara uses it for Lcfirst on Sara's board in a viva board.
RuleLcfirst() → one Lcfirst step Sara can write from memory.
RememberLcfirst() + Apache/Nginx (a viva board).
UseLcfirst() in a viva board (Lcfirst on Sara's board).
TrapLcfirst() — only reciting the name of Lcfirst.
ExLcfirst() → Lcfirst on Sara's board.

Lcfirst()

Example

Short notes

Questions

Lcfirst()

Example

Short notes

Questions