<?php
function outer() {
function inner() {
echo 'Inner function';
}
}
inner();
?
What is the output of the following PHP code?<?php
function multiply(...$args) {
$result = 1;
foreach ($args as $value) {
$result *= $value;
}
return $result;
}
echo multiply(2, 3, 4);
?
A). 24
B). 9
C). 6
D). 2
What will be the output of the following PHP code?<?php
function greet() {
echo 'Hello, World!';
}
if (function_exists('greet')) {
greet();
} else {
echo 'Function does not exist';
}
?
A). Hello, World!
B). Function does not exist
C). Undefined function: greet
D). Function greet() { echo 'Hello, World!'; }
Which PHP function is used to return a value from a function and terminate its execution?
A). return
B). exit
C). break
D). continue
Which PHP feature allows defining functions within other functions?
A). Inner functions
B). Enclosed functions
C). Nested functions
D). All of the above
What is the purpose of passing arguments to a function in PHP?
A). To specify the return value of the function
B). To allow the function to accept input data
C). To define the function name
D). To terminate the execution of the function
Which PHP keyword is used to define functions without specifying their names?
A). Dynamic functions
B). Anonymous functions
C). Inner functions
D). Nested functions
What will be the output of the following PHP code?<?php
function greet($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 defining functions with a variable number of arguments?
A). Optional parameters
B). Dynamic functions
C). Variable arguments
D). All of the above
Which keyword is used to define default parameter values in PHP functions?
A). default
B). var
C). const
D). None of the above
Which PHP feature allows defining functions with variable-length argument lists?
A). Dynamic functions
B). Variable arguments
C). Varargs
D). All of the above