PHP · Theory

Sessions

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Theory

44/352

Sessions

Sessions sits in the portal. Kabir’s job is logged-in flag. Write that first.

Sessions order — meaning → $_SESSION['user'] → one limit. Dumping ten features helps nobody.

Skip Sessions and forgetting session_start() shows up in the portal.

Sessions shows up in the portal. Name logged-in flag, not “a real-world scenario”.

If logged-in flag breaks under Sessions, check forgetting session_start() first.

Place Sessions next to nearby PHP work — $_SESSION['user'] is the link.

Viva for Sessions — what it is → $_SESSION['user'] → the mistake (forgetting session_start()).

Exam tip

Board: logged-in flag. Dry-run Sessions. Name the trap: forgetting session_start().

Example

<?php
// Sessions
$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";
}

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

Short notes

DefSessions — Kabir uses it for logged-in flag in the portal.
RuleSessions → $_SESSION['user'].
RememberSessions + a .php page (the portal).
UseSessions in the portal (logged-in flag).
TrapSessions — forgetting session_start().
ExSessions → logged-in flag.

PHP · Theory

Sessions

← All stacks

Theory

44/352

Sessions

Sessions sits in the portal. Kabir’s job is logged-in flag. Write that first.

Sessions order — meaning → $_SESSION['user'] → one limit. Dumping ten features helps nobody.

Skip Sessions and forgetting session_start() shows up in the portal.

Sessions shows up in the portal. Name logged-in flag, not “a real-world scenario”.

If logged-in flag breaks under Sessions, check forgetting session_start() first.

Place Sessions next to nearby PHP work — $_SESSION['user'] is the link.

Viva for Sessions — what it is → $_SESSION['user'] → the mistake (forgetting session_start()).

Exam tip

Board: logged-in flag. Dry-run Sessions. Name the trap: forgetting session_start().

Example

<?php
// Sessions
$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";
}

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

Short notes

DefSessions — Kabir uses it for logged-in flag in the portal.
RuleSessions → $_SESSION['user'].
RememberSessions + a .php page (the portal).
UseSessions in the portal (logged-in flag).
TrapSessions — forgetting session_start().
ExSessions → logged-in flag.

Sessions

Example

Short notes

Questions

Sessions

Example

Short notes

Questions