168 lines
3.8 KiB
PHP
168 lines
3.8 KiB
PHP
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Vulnerability testing</title>
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</head>
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<body>
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<h1>Welcome to vulnerability testing! Powered by PHP!</h1>
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<?= 'Hello world!' ?>
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<?php
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// datatypes are inferred at runtime
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$name = "John";
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$age = 30;
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$height = 1.85;
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$isActive = true;
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$skills = ["PHP", "JS"];
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$person = null;
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echo nl2br("\n\n");
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var_dump($skills);
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?>
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<?php
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// type juggling
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$a = "5";
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$b = 2;
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$c = $a+$b;
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echo nl2br("\n\ntype juggling:\n");
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var_dump($c); // whaddaya think? of course, it's int(7)
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?>
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<?php
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if ($age > 18) {
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echo "Adult";
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} elseif ($age > 12) {
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echo "Teenager";
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} else {
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echo "Child";
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}
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echo nl2br("\n\n");
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switch($day) {
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case "Monday":
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echo "Start of week";
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break;
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case "Friday":
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echo "End of week";
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break;
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default:
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echo "Mid-week";
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}
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echo nl2br("\n\n");
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for ($i = 0; $i < 5; $i++) {
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echo $i;
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}
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echo nl2br("\n\n");
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$fruits = ["apple", "banana", "orange"];
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foreach($fruits as $fruit) {
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echo $fruit;
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}
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echo nl2br("\n\n");
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foreach($fruits as $index => $fruit) {
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echo "$index: $fruit";
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}
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echo nl2br("\n\n");
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$i = 0;
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while ($i < 5) {
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echo $i++;
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}
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echo nl2br("\n\n");
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?>
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<?php
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$name = "John";
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$age = 20;
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echo "Hello, $name! You are $age years old!";
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// for complex, use squirly braces {}
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/* echo "Hello, {$name}! In 5 years, you'll be {$age + 5} years old."; */ // HACK: doesn't work for some way?
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// NOTE: single quote strings don't interpolate!!!
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echo nl2br("\n\n");
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?>
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<?php
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function greet($name, $greeting = "Hello") {
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return "$greeting, $name!";
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}
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echo greet("John");
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echo greet("Mary", "Hi");
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$multiply = function($a, $b) {
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return $a * $b;
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};
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echo $multiply(3,4);
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echo nl2br("\n\n");
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?>
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<?php
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class Person {
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public $name;
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private $age;
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public function __construct($name, $age) {
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$this->name = $name;
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$this->age = $age;
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}
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public function greet() {
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return "Hello, my name is {$this->name} and I'm {$this->age} years old.";
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}
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public function getAge() {
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return $this->age;
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}
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}
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$person = new Person("John", 30);
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echo $person->greet();
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echo $person->getAge();
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echo nl2br("\n\n");
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?>
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<?php
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$fruits = ["apple", "banana", "orange"];
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echo $fruits[0];
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echo nl2br("\n");
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$person = [
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"name" => "John",
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"age" => 30,
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"city" => "NewYork"
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];
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echo $person["name"];
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echo nl2br("\n");
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$users = [
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["name" => "John", "age" => 30],
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["name" => "Mary", "age" => 25],
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];
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echo $users[1]["name"];
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echo nl2br("\n");
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$fruits[] = "grape"; // add item to the end
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$person["job"] = "developer"; // add new K-V pair
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$count = count($fruits);
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$exists = in_array("apple", $fruits);
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sort($fruits);
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$keys = array_keys($person);
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$values = array_values($person);
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echo nl2br("\n\n");
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?>
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</body>
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</html>
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