[Solved] What is the output of the following PHP code?$num = 08; echo $num; — Ans: Parse error due to invalid octal number | PHP

PHP - Variables and Data Types

What is the output of the following PHP code?

$num = 08;
echo $num;

AParse error due to invalid octal number

B8

C0

DNULL

Step-by-Step Solution

Solution:

Step 1: Understand PHP integer literals
In PHP, numbers starting with 0 are interpreted as octal (base 8).
Step 2: Check the given number
The number 08 is invalid in octal because 8 is not a valid octal digit (digits must be 0-7).
Step 3: Result
PHP throws a parse error when encountering invalid octal literals like 08.
Final Answer:
Parse error due to invalid octal number -> Option A
Quick Check:
Leading zero means octal; 8 is invalid digit [OK]

Quick Trick: Numbers starting with 0 are octal; 8 is invalid digit [OK]

Common Mistakes:

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