Functions MCQ question and answer with solution

71

What will be the output of the following PHP code ?

<?php
function string()
{
    echo strstr("Hello world!", 111);
}
string();
?>

A) o world! B) Hello world! C) 111 D) No Output

Discuss

Answer & Solution

Answer: Option A

Solution:

111 is the ASCII value of o.

72

. . . . . converts the keys of an array into values and the values into keys.

A) array_flips() B) array_transpose() C) array_trans() D) array_flip()

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

73

Above usleep() function pauses PHP for .

usleep(1000000);

A) 1 second B) 1 microseconds C) 10 seconds D) 100 microseconds

Discuss

Answer & Solution

Answer: Option A

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74

Output will be:

$array = array(0, 1, 2);
$array = array_pad($array, -6, ‘NEW’);

A) Array ( [1] => NEW [2] => NEW [3] => NEW [4] => 0 [5] => 1 [6] => 2 ) B) Array ( [-1] => NEW [-2] => NEW [-3] => NEW [-4] => 0 [-5] => 1 [-6] => 2 ) C) Array ( [0] => NEW [-1] => NEW [-2] => NEW [-3] => 0 [-4] => 1 [-5] => 2 ) D) Array ( [0] => NEW [1] => NEW [2] => NEW [3] => 0 [4] => 1 [5] => 2 )

Discuss

Answer & Solution

Answer: Option D

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75

phpinfo() will display about?
1. OS version information
2. PHP installation
3. Variables
4. HTTP headers

A) Option 1 B) Option 2 C) Option 3 D) Option 4 E) All the Above

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Answer & Solution

Answer: Option E

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76

. . . . returns a new DateTime object.

A) getdate() B) date_create() C) date_sunrise() D) date()

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Answer & Solution

Answer: Option B

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77

It is always necessary to use parentheses with the print function.

A) True B) False

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Answer & Solution

Answer: Option B

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78

The below statement will return.

$Var = substr(""abcdef"", -4, 1);

A) returns "f" B) returns "d" C) returns "c" D) returns "cd"

Discuss

Answer & Solution

Answer: Option C

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79

Returning values from functions may include .....

A) Arrays B) Objects C) Both A & B D) None of above

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Answer & Solution

Answer: Option C

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80

The arguments in a function are evaluated from .....

A) left to right B) right to left C) sometimes left to right and sometimes right to left D) Always right to left

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Answer & Solution

Answer: Option A

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Functions MCQ question and answer with solution | PHP Programming