Q
Which of the following statements about returning values from PHP functions is true?

Answer & Solution

Answer: Option A
Solution:
PHP functions can return multiple values simultaneously by using an array or an object. Although a function can only explicitly return a single value, that value can be an array or an object containing multiple values.
Related Questions on Average

Which PHP feature allows defining functions with a variable number of arguments?

A). Optional parameters

B). Dynamic functions

C). Variable arguments

D). All of the above

What will be the output of the following PHP code?
<?php
function factorial($n) {
$result = 1;
for ($i = 1; $i <= $n; $i++) {
$result *= $i;
}
return $result;
}
echo factorial(5);
?

A). 120

B). 5

C). Undefined function: factorial

D). Function factorial($n) { $result = 1; for ($i = 1; $i <= $n; $i++) { $result *= $i; } return $result; }

Which PHP keyword is used to pass a function as an argument to another function?

A). Dynamic functions

B). Anonymous functions

C). Callbacks

D). All of the above

What will be the output of the following PHP code?
<?php
function greet($name = 'Guest') {
return 'Hello, $name!';
}
echo greet('Alice');
?

A). Hello, Guest!

B). Hello, Alice!

C). Hello, $name!

D). Function call will result in an error

Which PHP feature allows specifying default values for function arguments?

A). Default arguments

B). Optional parameters

C). Variable-length argument lists

D). All of the above

Which PHP function is used to check if a function exists before calling it?

A). function_exists()

B). is_function()

C). function_defined()

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What is the output of the following PHP code?
<?php
function uppercase($str) {
return strtoupper($str);
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echo uppercase('hello');
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A). HELLO

B). hello

C). Uppercase

D). Undefined function: uppercase

What will be the output of the following PHP code?
<?php
function greet() {
echo 'Hello, World!';
}
if (function_exists('greet')) {
greet();
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echo 'Function does not exist';
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A). Hello, World!

B). Function does not exist

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D). Function greet() { echo 'Hello, World!'; }

Which PHP feature allows defining functions with variable-length argument lists?

A). Dynamic functions

B). Variable arguments

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Which PHP function is used to return a value from a function and terminate its execution?

A). return

B). exit

C). break

D). continue