PHP Questions for Campus Interviews

This set of PHP Questions and Answers for Campus interviews focuses on “Operators – 4”.

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

```
<?php
```
```
echo 5 * 9 / 3 + 9;
```
```
?>
```

a) 24
b) 3.7
c) 3.85
d) 0
View Answer

Answer: a
Explanation: Operator precedence order must be followed.

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

```
<?php
```
```
$var1 = 1 + ++5;
```
```
echo $var1; 
```
```
?>
```

a) no output
b) error
c) 6
d) 7
View Answer

Answer: b
Explanation: Operator ++ can be done only on variables.

Note: Join free Sanfoundry classes at Telegram or Youtube

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

```
<?php
```
```
$var1 = 0;
```
```
$var1 = ($var1 + 5)++; 
```
```
echo $var1; 
```
```
?>
```

a) 5
b) error
c) 6
d) 7
View Answer

Answer: b
Explanation: Operator ++ can be done only on variables.

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

```
<?php
```
```
$var1 = 0;
```
```
$var1 = $var1++ + 5; 
```
```
echo $var1; 
```
```
?>
```

a) 5
b) error
c) 6
d) 7
View Answer

Answer: a
Explanation: Operator precedence followed.

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

```
<?php
```
```
$var1 = 0;
```
```
$var1 = ++$var1 + 5; 
```
```
echo $var1; 
```
```
?>
```

a) 5
b) error
c) 6
d) 7
View Answer

Answer: c
Explanation: Operator precedence followed.

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

```
<?php
```
```
$var1 = 0;
```
```
$var1 = $var1 + 5; 
```
```
echo $var1++; 
```
```
?>
```

a) 5
b) error
c) 6
d) 7
View Answer

Answer: a
Explanation: Operator precedence followed,incremented after display.

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

```
<?php
```
```
$var1 = 1;
```
```
echo $var1 = ++$var1 % 2 + ++$var1; 
```
```
?>
```

a) 1
b) 0
c) 2
d) 3
View Answer

Answer: d
Explanation: Evaluation done from right to left.

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

```
<?php
```
```
 $a = 5;$b = -7;$c =0; 
```
```
 $d = ++$a && ++$b || ++$c;
```
```
 print $d;print $a;
```
```
?>
```

a) 16
b) 06
c) 15
d) 05
View Answer

Answer: a
Explanation: 1&&0||1 is evaluated to 1 and the a is also pre incremented to 6.

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

```
<?php
```
```
$var1 = 3;
```
```
print $var = ++$var;
```
```
?>
```

a) 1
b) 0
c) 2
d) 3
View Answer

Answer: a
Explanation: $var = ++$var returns 1(success).

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

```
<?php
```
```
$var1 = 3;
```
```
print ++$var++;
```
```
?>
```

a) 3
b) 4
c) 5
d) error
View Answer

Answer: d
Explanation: First pre increment is done and the result is a number, thus post increment cannot be performed on it.

Sanfoundry Global Education & Learning Series – PHP Programming.

To practice all areas of PHP for Campus Interviews, here is complete set of 1000+ Multiple Choice Questions and Answers on PHP.

If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]

« Prev - PHP Coding Questions and Answers – Operators – 3

» Next - PHP Coding Questions and Answers – Operators – 5

Related Posts:

Recommended Articles: