What will be the output of the following PHP code?<?php
function uppercase($str) {
return strtoupper($str);
}
echo uppercase('hello');
?>
A). HELLO
B). hello
C). Uppercase
D). Undefined function: uppercase
What is the syntax for calling a function in PHP?
A). callFunction()
B). function callFunction()
C). callFunction
D). callFunction;
What is the purpose of parameters in PHP functions?
A). To store values within the function
B). To define the return type of the function
C). To specify values that are passed to the function when it is called
D). To specify the visibility of the function
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!'; }
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
Which PHP feature allows defining functions within other functions?
A). Nested functions
B). Inner functions
C). Enclosed functions
D). Internal functions
Which PHP feature allows defining functions without specifying their names?
A). Anonymous functions
B). Dynamic functions
C). Global functions
D). Static functions
What is the purpose of the return statement in PHP functions?
A). To terminate the function execution
B). To output a value from the function and terminate its execution
C). To define the function name
D). To declare a variable within the function
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 keyword is used to define a function in PHP?
A). define
B). function
C). declare
D). method