$filename = $_GET['file']; $content = file_get_contents("/var/www/files/" . $filename); echo $content;
Senior
144
PHP
Tell us about your work experience, technology stack, and projects.
Middle+
140
Find the vulnerability in the code that reads data from a GET parameter
Middle+
139
class Cache { private static $data = []; public function set($key, $value) { self::$data[$key] = $value; } public function get($key) { return self::$data[$key] ?? null; } } $cacheA = new Cache(); $cacheA->set('user', 'Alice'); $cacheB = new Cache(); echo $cacheB->get('user'); // ?
Senior
139
What will this code output when using cache in Laravel? (question about two different cache instances)
Middle+
137
How is the facade pattern in Laravel implemented, which appears as static calls but works as regular objects?
Middle+
127
How would you organize work and session storage in horizontal scaling?
Senior
122
What is the name of the method chaining pattern in Laravel (User::where()->orderBy()->get()) and what do the methods inside it technically do to make the chain work?
Middle+
118
How would you implement processing large volumes of tasks (millions in queue) without hitting memory and execution time limits?
Senior
118
Find the error in the code and the vulnerability (code with SQL concatenation via QueryBuilder)
Middle+
116