gistfile1.txt

<?php

use Respect\Validation\Validator as v;

/**
* 
* @throws \Respect\Validation\Exceptions\ValidationException (actually superclass of \InvalidArgumentException)
*/
function createUserEntity($username, $firstName, $lastName, $age, $heightCm, $married,  $email,  $comment){
    v::alnum()->noWhitespace()->length(1,15)->check($username);
    v::stringType()->noWhitespace()->length(1,255)->check($firstName);
    v::stringType()->noWhitespace()->length(1,255)->check($lastName);
    v::intVal()->between(18, 100)->check($age);
    v::numericVal()->between(80.5, 249.9)->check($height);
    v::boolType()->check($married);
    v::email()->check($email);
    v::stringType()->length(1)->check($comment);
    
    
    // do some useful stuff with data
    // ...
    // ...
    
}