PHP · Theory

CSRF Protection

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CSRF Protection

If you can teach CSRF Protection using a CSRF Protection dry-run, you know it. If you only know the heading, you don’t.

Keep CSRF Protection small. Sara should finish a CSRF Protection dry-run in a few lines, not a 40-line dump.

Skip CSRF Protection and copy-pasting CSRF Protection without a dry-run shows up in lab hour.

Use CSRF Protection when a CSRF Protection dry-run must stay clear. If a simpler PHP step works, use that instead.

If a CSRF Protection dry-run breaks under CSRF Protection, check copy-pasting CSRF Protection without a dry-run first.

Place CSRF Protection next to nearby PHP work — one CSRF Protection step Sara can write from memory is the link.

Viva for CSRF Protection: what it is → one CSRF Protection step Sara can write from memory → the mistake (copy-pasting CSRF Protection without a dry-run).

Exam tip

For CSRF Protection: definition + lab hour + one failure.

Example

<?php
// CSRF Protection
$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";
}

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

Short notes

DefCSRF Protection — Sara uses it for a CSRF Protection dry-run in lab hour.
RuleCSRF Protection → one CSRF Protection step Sara can write from memory.
RememberCSRF Protection + a .php page (lab hour).
UseCSRF Protection in lab hour (a CSRF Protection dry-run).
TrapCSRF Protection — copy-pasting CSRF Protection without a dry-run.
ExCSRF Protection → a CSRF Protection dry-run.

<?php // CSRF Protection $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"; }

CSRF Protection

Example

Short notes

Questions

CSRF Protection

Example

Short notes

Questions