[Solved] Consider this PHP code run twice separately:<?php session_start(); if (!isset($_SESSION['count'])) { $_SESSION['count'] = 0; } $_SESSION['count']++;... ?>What will be the output on the second run? | PHP

PHP - Request Lifecycle

Consider this PHP code run twice separately:

<?php
session_start();
if (!isset($_SESSION['count'])) {
  $_SESSION['count'] = 0;
}
$_SESSION['count']++;
echo $_SESSION['count'];
?>

What will be the output on the second run?

A1

BError

C0

D2

Step-by-Step Solution

Solution:

Step 1: Understand session variable behavior
Session data persists between runs, so $_SESSION['count'] keeps incrementing.
Step 2: Trace first and second run values
First run sets count to 1, second run increments to 2 and echoes it.
Final Answer:
2 -> Option D
Quick Check:
Session data persists = 2 [OK]

Quick Trick: Sessions keep data between runs, so count increments [OK]

Common Mistakes:

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