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Security Basics

Theory

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Security Basics

If you can teach Security Basics using Zara walking through Security Basics, you know it. If you only know the heading, you don’t.

Security Basics on the board: one Security Basics step Zara can write from memory. Then say what Zara walking through Security Basics looks like after.

Without Security Basics, a small live site gets messy and Zara walking through Security Basics is hard to trust.

Security Basics shows up in a small live site. Name Zara walking through Security Basics, not “a real-world scenario”.

Don’t do this with Security Basics — skipping the failure case for Security Basics. Interviewers spot it in ten seconds.

After Security Basics, Zara should still remember skipping the failure case for Security Basics.

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

Exam tip

Say Security Basics in one breath, then one Security Basics step Zara can write from memory, then skipping the failure case for Security Basics.

Example

<?php
// Security Basics
$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";
}

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

Short notes

DefSecurity Basics — Zara uses it for Zara walking through Security Basics in a small live site.
RuleSecurity Basics → one Security Basics step Zara can write from memory.
RememberSecurity Basics + the PHP runtime (a small live site).
UseSecurity Basics in a small live site (Zara walking through Security Basics).
TrapSecurity Basics — skipping the failure case for Security Basics.
ExSecurity Basics → Zara walking through Security Basics.

<?php // Security Basics $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"; }

Security Basics

Example

Short notes

Questions

Security Basics

Example

Short notes

Questions