PHP Code Output Quiz

What is the output of the following PHP code? class Patient { public $name; public $age; public function __construct($name, $age) { $this->name = $name; $this->age = $age; } public function getDetails() { return $this->name . " is " . $this->age . " years old."; } } $p1 = new Patient("Alice", 32); echo $p1->getDetails();

• Alice is 32 years old.

• Alice -> 32

• Name: Alice, Age: 32

• Error: Undefined method

What will the following PHP code display? function calcBMI($weight, $height) { $bmi = $weight / ($height * $height); return round($bmi, 2); } echo calcBMI(65, 1.75);

• 22.45

• 21.22

• 23.33

• 20.67

What is the output of the following code snippet? $products = ["Shoes" => 50, "Shirts" => 30, "Jeans" => 40]; function applyDiscount(&$items, $discount) { foreach ($items as $item => &$price) { $price -= ($price * $discount / 100); } } applyDiscount($products, 10); echo $products["Shoes"];

• 40

• 50

• 45

• 55

What will the code display? $inventory = [ "Product" => "Laptop", "Stock" => 15, "Price" => 75000 ]; echo json_encode($inventory);

• Array (Product => Laptop, Stock => 15, Price => 75000)

• Product => Laptop, Stock => 15, Price => 75000

• Laptop, 15, 75000

• {"Product":"Laptop","Stock":15,"Price":75000}

What will the following PHP snippet display? $students = ["John" => 85, "Alice" => 90, "Bob" => 78]; function getTopStudent($arr) { arsort($arr); return key($arr); } echo getTopStudent($students);

• Alice

• John

• Bob

• Undefined

What will be the output? class Student { public $name; public $grade; public function __construct($name, $grade) { $this->name = $name; $this->grade = $grade; } public function isPassed() { return $this->grade >= 75 ? "Passed" : "Failed"; } } $s = new Student("Emma", 72); echo $s->isPassed();

• Undefined

• Passed

• Failed

• Error

What will the following PHP code display? function calcCost($hours, $rate) { return $hours * $rate; } echo calcCost(40, 35);

• 1400

• 1350

• 1450

• 1300

What is the output of the following PHP snippet? $projects = [ ["name" => "Bridge", "cost" => 50000], ["name" => "Road", "cost" => 30000], ]; $total = array_sum(array_column($projects, "cost")); echo $total;

• 30000

• 50000

• 80000

• 60000

What will the following code snippet display? $employees = ["Alice" => 5000, "Bob" => 6000, "Charlie" => 7000]; function getSalary($emp, $name) { return $emp[$name]; } echo getSalary($employees, "Bob");

• 6000

• 5000

• 7000

• Undefined

What is the output? $emp = new stdClass(); $emp->name = "David"; $emp->salary = 4500; echo $emp->name . " earns " . $emp->salary;

• Undefined

• Name: David, Salary: 4500

• Error: Undefined variable

• David earns 4500