PHP · Theory

Recursive

Theory

32/352

Recursive

Don’t start Recursive (function) with jargon. Start with Rohit walking through Recursive function. That is the whole point.

Do Recursive (function) once by hand. one Recursive function step Rohit can write from memory. Change one input. Say the new result out loud.

Skip Recursive (function) and skipping the failure case for Recursive function shows up in a small live site.

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

Recursive (function) trap — skipping the failure case for Recursive function. Rohit loses marks for that every viva.

Recursive (function) is not a lonely heading. Rohit ties it to Rohit walking through Recursive function.

Close Recursive (function) with: “If I skip it, Rohit walking through Recursive function goes wrong like this: skipping the failure case for Recursive function.”

Exam tip

Say Recursive (function) in one breath, then one Recursive function step Rohit can write from memory, then skipping the failure case for Recursive function.

Example

<?php
// Recursive
$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";
}

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

Short notes

DefRecursive (function) — Rohit uses it for Rohit walking through Recursive function in a small live site.
RuleRecursive (function) → one Recursive function step Rohit can write from memory.
RememberRecursive (function) + the PHP runtime (a small live site).
UseRecursive (function) in a small live site (Rohit walking through Recursive function).
TrapRecursive (function) — skipping the failure case for Recursive function.
ExRecursive (function) → Rohit walking through Recursive function.

PHP · Theory

Recursive

← All stacks

Theory

32/352

Recursive

Don’t start Recursive (function) with jargon. Start with Rohit walking through Recursive function. That is the whole point.

Do Recursive (function) once by hand. one Recursive function step Rohit can write from memory. Change one input. Say the new result out loud.

Skip Recursive (function) and skipping the failure case for Recursive function shows up in a small live site.

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

Recursive (function) trap — skipping the failure case for Recursive function. Rohit loses marks for that every viva.

Recursive (function) is not a lonely heading. Rohit ties it to Rohit walking through Recursive function.

Close Recursive (function) with: “If I skip it, Rohit walking through Recursive function goes wrong like this: skipping the failure case for Recursive function.”

Exam tip

Say Recursive (function) in one breath, then one Recursive function step Rohit can write from memory, then skipping the failure case for Recursive function.

Example

<?php
// Recursive
$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";
}

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

Short notes

DefRecursive (function) — Rohit uses it for Rohit walking through Recursive function in a small live site.
RuleRecursive (function) → one Recursive function step Rohit can write from memory.
RememberRecursive (function) + the PHP runtime (a small live site).
UseRecursive (function) in a small live site (Rohit walking through Recursive function).
TrapRecursive (function) — skipping the failure case for Recursive function.
ExRecursive (function) → Rohit walking through Recursive function.

Recursive

Example

Short notes

Questions

Recursive

Example

Short notes

Questions