[Solved] Consider this PHP code snippet run on two separate requests: <?php session_start(); if (!isset($_SESSION['visits'])) { $_SESSION['visits'] = 1;... ?> What will be the output on the second request? | PHP

PHP - Request Lifecycle

Consider this PHP code snippet run on two separate requests:

<?php
session_start();
if (!isset($_SESSION['visits'])) {
    $_SESSION['visits'] = 1;
} else {
    $_SESSION['visits']++;
}
echo $_SESSION['visits'];
?>

What will be the output on the second request?

A1

B2

C0

DError

Step-by-Step Solution

Solution:

Step 1: Analyze session variable initialization
On the first request, $_SESSION['visits'] is not set, so it is initialized to 1.
Step 2: Analyze second request behavior
On the second request, $_SESSION['visits'] exists, so it increments by 1, becoming 2.
Final Answer:
2 -> Option B
Quick Check:
Session increments visits count correctly [OK]

Quick Trick: Sessions keep data; visits count increases each request [OK]

Common Mistakes:

Assuming visits resets to 1 every request
Forgetting to call session_start()
Expecting an error due to undefined index

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More PHP Quizzes

Consider this PHP code snippet run on two separate requests:

Step 1: Analyze session variable initialization

Step 2: Analyze second request behavior

Final Answer:

Quick Check:

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