[Solved] Find the error in this PHP code snippet:class Vehicle { const WHEELS = 4; public function wheels() { return self->WHEELS; } } | PHP

PHP - Classes and Objects

Find the error in this PHP code snippet:

class Vehicle {
    const WHEELS = 4;
    public function wheels() {
        return self->WHEELS;
    }
}

AMissing $ before WHEELS

BConstants cannot be accessed inside methods

Cself->WHEELS is invalid syntax, should be self::WHEELS

DWHEELS should be a variable, not constant

Step-by-Step Solution

Solution:

Step 1: Check constant access syntax
Constants are accessed with :: operator, not ->.
Step 2: Identify correct syntax
Replace self->WHEELS with self::WHEELS to fix error.
Final Answer:
self->WHEELS is invalid syntax, should be self::WHEELS -> Option C
Quick Check:
Access constants with ::, not -> [OK]

Quick Trick: Use self::CONST, not self->CONST inside methods [OK]

Common Mistakes:

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