[Solved] Consider this PHP code:<?php session_start(); if (!isset($_SESSION['visits'])) { $_SESSION['visits'] = 1; } else { $_SESSION['visits']++;... ?>What will be the output on the first page load? | PHP

PHP - Sessions and Cookies

Consider this PHP code:

<?php
session_start();
if (!isset($_SESSION['visits'])) {
  $_SESSION['visits'] = 1;
} else {
  $_SESSION['visits']++;
}
setcookie('visits', $_SESSION['visits'], time() + 3600);
echo $_COOKIE['visits'];
?>

What will be the output on the first page load?

ANotice error for undefined index

B1

C0

D2

Step-by-Step Solution

Solution:

Step 1: Analyze cookie availability on first load
Cookies set with setcookie() are not available in $_COOKIE until the next request.
Step 2: Check echo statement
Echoing $_COOKIE['visits'] on first load causes a notice error because it is not set yet.
Final Answer:
Notice error for undefined index -> Option A
Quick Check:
Cookie not accessible immediately after setcookie() [OK]

Quick Trick: Cookies appear in $_COOKIE only on next request [OK]

Common Mistakes:

Expecting cookie value immediately after setcookie()
Ignoring PHP notices for undefined cookie keys
Confusing session and cookie timing

Master "Sessions and Cookies" in PHP

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More PHP Quizzes

Consider this PHP code:

Step 1: Analyze cookie availability on first load

Step 2: Check echo statement

Final Answer:

Quick Check:

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