PHP Questions and Answers for Freshers

This set of PHP Questions and Answers for Freshers focuses on “Basics – 3”.

1. What will be the output of the following PHP code?

```
    <?php
```
```
    $a = 5;
```
```
    $b = 5;
```
```
    echo ($a === $b);
```
```
    ?>
```

a) 5 === 5
b) Error
c) 1
d) False
View Answer

Answer: c
Explanation: === operator returns 1 if $a and $b are equivalent and $a and $b have the same type.

2. Which of the below symbols is a newline character?
a) \r
b) \n
c) /n
d) /r
View Answer

Answer: b
Explanation: PHP treats \n as a newline character.

3. What will be the output of the following PHP code?

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```
    <?php
```
```
    $num = 10;
```

    echo 'What is her age? \n She is $num years old';

```
    ?>
```

a) What is her age? \n She is $num years old
b)

What is her age?
She is $num years old

c) What is her age? She is 10 years old
d)

What is her age?
She is 10 years old

View Answer

Answer: a
Explanation: When a string is enclosed within single quotes both variables and escape sequences will not be interpreted when the string is parsed.

4. Which of the conditional statements is/are supported by PHP?

i) if statements
ii) if-else statements
iii) if-elseif statements
iv) switch statements

a) Only i)
b) i), ii) and iv)
c) ii), iii) and iv)
d) i), ii), iii) and iv)
View Answer

Answer: d
Explanation: All are conditional statements supported by PHP as all are used to evaluate different conditions during a program and take decisions based on whether these conditions evaluate to true of false.

5. What will be the output of the following PHP code?

```
    <?php
```
```
    $team = "arsenal";
```
```
    switch ($team) {
```
```
    case "manu":
```
```
        echo "I love man u";
```
```
    case "arsenal":
```
```
        echo "I love arsenal";
```
```
    case "manc":
```
```
        echo "I love manc"; }
```
```
    ?>
```

a) I love arsenal
b) Error
c) I love arsenalI love manc
d) I love arsenalI love mancI love manu
View Answer

Answer: c
Explanation: If a break statement isn’t present, all subsequent case blocks will execute until a break statement is located.

6. Which of the looping statements is/are supported by PHP?

i) for loop
ii) while loop
iii) do-while loop
iv) foreach loop

a) i) and ii)
b) i), ii) and iii)
c) i), ii), iii) and iv)
d) Only iv)
View Answer

Answer: c
Explanation: All are supported looping statements in PHP as they can repeat the same block of code a given number of times, or until a certain condition is met.

7. What will be the output of the following PHP code?

```
    <?php
```

    $user = array("Ashley", "Bale", "Shrek", "Blank");

    for ($x=0; $x < count($user); $x++)	{

        if ($user[$x] == "Shrek") continue;

```
            printf ($user[$x]); 
```
```
    }
```
```
    ?>
```

a) AshleyBale
b) AshleyBaleBlank
c) ShrekBlank
d) Shrek
View Answer

Answer: b
Explanation: The continue statement causes execution of the current loop iteration to end and commence at the beginning of the next iteration.

8. If $a = 12 what will be returned when ($a == 12) ? 5 : 1 is executed?
a) 12
b) 1
c) Error
d) 5
View Answer

Answer: d
Explanation: ?: is known as ternary operator. If condition is true then the part just after the ? is executed else the part after : .

9. What will be the value of $a and $b after the function call in the following PHP code?

```
    <?php
```
```
    function doSomething( &$arg ) {
```
```
        $return = $arg;
```
```
        $arg += 1;
```
```
        return $return;	
```
```
    }
```
```
    $a = 3;
```
```
    $b = doSomething( $a );
```
```
    ?>
```

a) a is 3 and b is 4
b) a is 4 and b is 3
c) Both are 3
d) Both are 4
View Answer

Answer: b
Explanation: $a is 4 and $b is 3. The former because $arg is passed by reference, the latter because the return value of the function is a copy of the initial value of the argument.

10. Who is the father of PHP?
a) Rasmus Lerdorf
b) Willam Makepiece
c) Drek Kolkevi
d) List Barely
View Answer

Answer: a
Explanation: PHP was originally created by Rasmus Lerdorf in 1994.

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