};
echo $greet("John");
? | PHP | MYTAT"> };
echo $greet("John");
? | PHP | MYTAT">
Q
What will be the output of the following PHP code?
<?php
$greet = function($name) {
return 'Hello, $name!';
};
echo $greet('John');
?

Answer & Solution

Answer: Option A
Solution:
The output of the code will be Hello, John! because the anonymous function assigned to the variable $greet accepts a parameter $name and returns the string 'Hello, $name!' with the provided value substituted in. The function is then called with the argument 'John' and its result is echoed.
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

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

A). Dynamic functions

B). Variable arguments

C). Varargs

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

A). PHP functions can return multiple values simultaneously

B). PHP functions cannot return values

C). PHP functions must always return a value

D). PHP functions can only return values of type string

What will be the output of the following PHP code?
<?php
function add($a, $b) {
return $a + $b;
}
$result = add(5, 3);
echo $result;
?

A). 8

B). add(5, 3)

C). function add($a, $b) { return $a + $b; }

D). $a + $b

What is the output of the following PHP code?
<?php
function outer() {
function inner() {
echo 'Inner function';
}
}
inner();
?

A). Inner function

B). Function does not exist: inner

C). Undefined function: inner

D). Function inner() { echo 'Inner function'; }

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 specifying default values for function arguments?

A). Default arguments

B). Optional parameters

C). Variable-length argument lists

D). All of the above

What is the purpose of the return statement in PHP functions?

A). To output a value from the function and terminate its execution

B). To specify the return type of the function

C). To declare a variable within the function

D). To terminate the function execution

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; }