You want to print all even numbers from 2 to 10 using a while loop in PHP. Which code correctly does this?

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PHP - Loops

You want to print all even numbers from 2 to 10 using a while loop in PHP. Which code correctly does this?

A$i = 2; while ($i <= 10) { echo $i . ' '; $i += 2; }

B$i = 1; while ($i <= 10) { if ($i % 2 == 1) echo $i . ' '; $i++; }

C$i = 2; while ($i < 10) { echo $i . ' '; $i += 2; }

D$i = 0; while ($i <= 10) { echo $i . ' '; $i += 2; }

Step-by-Step Solution

Solution:

Step 1: Identify correct start and condition
Start at 2 and include 10, so condition is $i <= 10.
Step 2: Check increment and output
Increment by 2 to get even numbers only, and echo with space.
Step 3: Compare options
$i = 2; while ($i <= 10) { echo $i . ' '; $i += 2; } matches all criteria exactly. $i = 1; while ($i <= 10) { if ($i % 2 == 1) echo $i . ' '; $i++; } prints odd numbers: 1 3 5 7 9. $i = 2; while ($i < 10) { echo $i . ' '; $i += 2; } misses 10. $i = 0; while ($i <= 10) { echo $i . ' '; $i += 2; } starts at 0, which is not requested.
Final Answer:
$i = 2; while ($i <= 10) { echo $i . ' '; $i += 2; } -> Option A
Quick Check:
Start=2, end=10, step=2 [OK]

Quick Trick: Start at 2, increment by 2, stop at 10 inclusive [OK]

Common Mistakes:

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