Answer & Solution
Answer: Option C
Solution:
Parameters in PHP functions are used to specify values that are passed to the function when it is called, allowing the function to work with different data.
Q
What is the purpose of parameters in PHP functions?
Related Questions on Average
Which PHP feature allows defining functions without specifying their names?
A). Anonymous functions
B). Dynamic functions
C). Global functions
D). Static functions
What keyword is used to define a function in PHP?
A). define
B). function
C). declare
D). method
Which PHP keyword is used to check if a function exists before calling it?
A). check_function()
B). function_exists()
C). function_check()
D). exists_function()
What is the output of the following PHP code?<?php
function multiply(...$args) {
$result = 1;
foreach ($args as $value) {
$result *= $value;
}
return $result;
}
echo multiply(2, 3, 4);
?>
A). 24
B). 9
C). 6
D). 2
What will be the output of the following PHP code?<?php
function add($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 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!'; }
What is the output of the following PHP code?<?php
$num = 10;
function testScope() {
global $num;
echo $num;
}
testScope();
?>
A). 10
B). 0
C). Undefined variable: num
D). Variable $num cannot be accessed outside the function
Which of the following statements about variable scope in PHP functions is true?
A). Variables defined inside a function have global scope
B). Variables defined outside a function have local scope
C). Variables defined inside a function have local scope
D). Variables defined outside a function have global scope
What is the syntax for calling a function in PHP?
A). callFunction()
B). function callFunction()
C). callFunction
D). callFunction;
Which of the following statements is true about function names in PHP?
A). Function names are case-sensitive
B). Function names must start with a dollar sign ($)
C). Function names cannot contain numbers
D). Function names can contain spaces