Chapter Exam

Chapter 7: Loops in PHP — Online MCQ Test

Q: Which loop in PHP is best suited for repeating a block of code a fixed number of times?

Answer: A. for loop — The for loop is used when the number of iterations is known in advance. It has initialization, condition, and increment/decrement parts.

Q: Which loop executes the block of statements at least once, even if the condition is false?

Answer: C. do-while loop — In a do-while loop, the condition is checked after the loop body executes. So the body runs at least once.

Q: Which loop is most appropriate when the number of elements in an array is not known in advance?

Answer: C. foreach loop — Foreach automatically handles every element in an array without requiring the programmer to know the size beforehand.

Q: What is the output of the following code? $arr = array(10, 20, 30); foreach($arr as $value) { echo $value . ' '; }

Answer: A. 10 20 30 — Foreach traverses the array from the first element to the last element. Each value is echoed in order with a space.

COMPUTER APPLICATIONS · CLASS 12th · Tamil Nadu State Board

Practice Chapter 7: Loops in PHP with a free chapter-wise online MCQ test for Tamil Nadu State Board CLASS 12th COMPUTER APPLICATIONS. This chapter covers: Exploring iterative execution this chapter details looping structures in PHP scripts. Students master for loops while loops do-while loops and foreach loops specifically tailored f.... AI-generated questions from basic to board-exam level, with instant results and explanations.

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Chapter 7: Loops in PHP — Important Questions & Answers (FAQ)

Frequently asked questions from Tamil Nadu State Board CLASS 12th COMPUTER APPLICATIONS — Chapter 7: Loops in PHP, with answers and explanations. These are sample questions; the exam has its own separate question set.

Which loop in PHP is best suited for repeating a block of code a fixed number of times?

A. for loop ✓
B. while loop
C. do-while loop
D. foreach loop

Answer: A. for loop
The for loop is used when the number of iterations is known in advance. It has initialization, condition, and increment/decrement parts.

Which loop executes the block of statements at least once, even if the condition is false?

A. for loop
B. while loop
C. do-while loop ✓
D. foreach loop

Answer: C. do-while loop
In a do-while loop, the condition is checked after the loop body executes. So the body runs at least once.

Which of the following is the correct syntax of a for loop in PHP?

A. for(initialization; condition; increment) { statements; } ✓
B. for(condition; initialization; increment) { statements; }
C. for{ initialization; condition; increment; statements; }
D. for(initialization, condition, increment) { statements; }

Answer: A. for(initialization; condition; increment) { statements; }
The standard PHP for loop syntax includes initialization, condition, and increment/decrement in that order inside parentheses.

Which loop is most appropriate when the number of elements in an array is not known in advance?

A. for loop
B. while loop
C. foreach loop ✓
D. do-while loop

Answer: C. foreach loop
Foreach automatically handles every element in an array without requiring the programmer to know the size beforehand.

What is the output of the following code? $arr = array(10, 20, 30); foreach($arr as $value) { echo $value . ' '; }

A. 10 20 30 ✓
B. 30 20 10
C. 10,20,30
D. 123

Answer: A. 10 20 30
Foreach traverses the array from the first element to the last element. Each value is echoed in order with a space.

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