[Solved] What happens when a nested loop runs in PHP?for ($i = 0; $i for ($j = 0; $j // code }} — Ans: The inner loop runs completely for each iteration of the outer loop. | PHP

PHP - Loops

What happens when a nested loop runs in PHP?

for ($i = 0; $i < 2; $i++) {
  for ($j = 0; $j < 3; $j++) {
    // code
  }
}

AThe inner loop runs completely for each iteration of the outer loop.

BThe outer loop runs completely for each iteration of the inner loop.

CBoth loops run only once.

DThe loops run simultaneously without nesting.

Step-by-Step Solution

Solution:

Step 1: Understand loop nesting order
The outer loop runs from 0 to 1 (2 times). For each outer loop iteration, the inner loop runs fully.
Step 2: Inner loop completes all cycles per outer iteration
For each $i, $j runs from 0 to 2 (3 times), completing all inner cycles before next outer iteration.
Final Answer:
The inner loop runs completely for each iteration of the outer loop. -> Option A
Quick Check:
Inner loop finishes fully inside outer loop [OK]

Quick Trick: Inner loop runs fully inside each outer loop cycle [OK]

Common Mistakes:

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