Which of the following is the correct way to set a cookie named session_id with value xyz123 that expires after 30 minutes in PHP?

easy📝 Syntax Q3 of 15

PHP - Sessions and Cookies

Which of the following is the correct way to set a cookie named session_id with value xyz123 that expires after 30 minutes in PHP?

Asetcookie('session_id', 'xyz123', time() + 3600);

Bsetcookie('session_id', 'xyz123', time() + 1800);

Csetcookie('session_id', 'xyz123', time() - 1800);

Dsetcookie('session_id', 'xyz123');

Step-by-Step Solution

Solution:

Step 1: Understand the expiration time
30 minutes equals 1800 seconds.
Step 2: Use time() + 1800 as the expiration timestamp
The third parameter of setcookie() is the expiration time in Unix timestamp format.
Final Answer:
setcookie('session_id', 'xyz123', time() + 1800); -> Option B
Quick Check:
Expiration time is 30 minutes (1800 seconds) [OK]

Quick Trick: Use time() + seconds for expiration [OK]

Common Mistakes:

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