PHP · Theory

Destructor

Theory

57/352

Destructor

Destructor sits in a first job task. Neha’s job is Neha walking through Destructor. Write that first.

Do Destructor once by hand. one Destructor step Neha can write from memory. Change one input. Say the new result out loud.

Destructor exists so Neha can keep Neha walking through Destructor correct in a first job task.

Destructor shows up in a first job task. Name Neha walking through Destructor, not “a real-world scenario”.

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

Destructor is not a lonely heading. Neha ties it to Neha walking through Destructor.

Viva for Destructor: what it is → one Destructor step Neha can write from memory → the mistake (skipping the failure case for Destructor).

Exam tip

Board: Neha walking through Destructor. Dry-run Destructor. Name the trap: skipping the failure case for Destructor.

Example

<?php
// Destructor
$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";
}

Destructor: scores array, print avg, then high marks. Say the output.

Short notes

DefDestructor — Neha uses it for Neha walking through Destructor in a first job task.
RuleDestructor → one Destructor step Neha can write from memory.
RememberDestructor + a .php page (a first job task).
UseDestructor in a first job task (Neha walking through Destructor).
TrapDestructor — skipping the failure case for Destructor.
ExDestructor → Neha walking through Destructor.

PHP · Theory

Destructor

← All stacks

Theory

57/352

Destructor

Destructor sits in a first job task. Neha’s job is Neha walking through Destructor. Write that first.

Do Destructor once by hand. one Destructor step Neha can write from memory. Change one input. Say the new result out loud.

Destructor exists so Neha can keep Neha walking through Destructor correct in a first job task.

Destructor shows up in a first job task. Name Neha walking through Destructor, not “a real-world scenario”.

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

Destructor is not a lonely heading. Neha ties it to Neha walking through Destructor.

Viva for Destructor: what it is → one Destructor step Neha can write from memory → the mistake (skipping the failure case for Destructor).

Exam tip

Board: Neha walking through Destructor. Dry-run Destructor. Name the trap: skipping the failure case for Destructor.

Example

<?php
// Destructor
$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";
}

Destructor: scores array, print avg, then high marks. Say the output.

Short notes

DefDestructor — Neha uses it for Neha walking through Destructor in a first job task.
RuleDestructor → one Destructor step Neha can write from memory.
RememberDestructor + a .php page (a first job task).
UseDestructor in a first job task (Neha walking through Destructor).
TrapDestructor — skipping the failure case for Destructor.
ExDestructor → Neha walking through Destructor.

Destructor

Example

Short notes

Questions

Destructor

Example

Short notes

Questions