[Solved] Identify the error in this PHP for loop:for ($k = 0; $k — Ans: The increment expression should be $k += 2, not $k + 2 | PHP

PHP - Loops

Identify the error in this PHP for loop:

for ($k = 0; $k < 4; $k + 2) {
    echo $k;
}

AThe initialization should be $k = 1

BThe loop condition should be $k <= 4

CThe increment expression should be $k += 2, not $k + 2

DThe echo statement is missing a semicolon

Step-by-Step Solution

Solution:

Step 1: Check increment part
The increment expression '$k + 2' does not update $k; it just evaluates an expression.
Step 2: Correct increment syntax
Use '$k += 2' to increment $k by 2 each iteration.
Final Answer:
The increment expression should be $k += 2, not $k + 2 -> Option C
Quick Check:
Increment must update variable [OK]

Quick Trick: Increment must modify loop variable [OK]

Common Mistakes:

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