Online PHP editor | output for 7Zour

@ 2013-05-31T11:37:56Z

<?php

class Book
{
    protected $title;
	protected $author;
    protected $genres;

    public function __construct()
    {
        $this->genres = new ArrayObject();
    }

    public function addGenre($genre)
    {
        $this->genres[] = $genre;
        return $this;
    }

    public function getGenres()
    {
        return $this->genres;
    }

    public function setAuthor(Person $author)
    {
        $this->author = $author;
        return $this;
    }

    public function getAuthor()
    {
        return $this->author;
    }

    public function setTitle($title)
    {
        $this->title = $title;
        return $this;
    }

    public function getTitle()
    {
        return $this->title;
    }
}

class Person
{
	protected $firstName;

    protected $lastName;

    public function __construct($firstName = null, $lastName = null)
    {
        $this->setFirstName($firstName);
		$this->setLastName($lastName);
    }

    public function setFirstName($firstName)
    {
        $this->firstName = $firstName;
        return $this;
    }

    public function getFirstName()
    {
        return $this->firstName;
    }

    public function setLastName($lastName)
    {
        $this->lastName = $lastName;
        return $this;
    }

    public function getLastName()
    {
        return $this->lastName;
    }
}

interface Hydrator
{
    public function hydrate($object, array $data);
    public function extract($object);
}

class ReflectionHydrator implements Hydrator
{
    public function hydrate($object, array $data)
    {
		$reflection = new ReflectionClass($object);
        $transform  = function ($key) {
			return 'set' . str_replace(' ', '', ucwords(str_replace('_', ' ', $key)));
		};

        foreach ($reflection->getMethod() as $method) {
			if (!$method->isPublic() || 0 !== strpos($method->getName(), 'set')) {
                continue;
            }
			$field = lcfirst(substr($method->getName(), 3));
            // @todo
        }
    }

    public function extract($object)
    {
        $data = array();
        $reflection = new ReflectionClass($object);
        $transform  = function ($key) {
			return '_' . strtolower(array_shift($key));
		};

        foreach ($reflection->getMethods() as $method) {
            if (!$method->isPublic() || 0 !== strpos($method->getName(), 'get')) {
                continue;
            }
            $field = lcfirst(substr($method->getName(), 3));
            $normalized = preg_replace_callback('/([A-Z])/', $transform, $field);
            $data[$normalized] = $method->invoke($object);
        }

        return $data;
    }
}

class DryReflectionHydrator implements Hydrator
{

    public function extract($object)
    {
        $transform = function ($key) {
			return '_' . strtolower(array_shift($key));
		};
        $data = array();

        // Process get methods
        $this->processMethods($object, 'get', function ($field, ReflectionMethod $method) use (&$data, $transform) {
            $normalized = preg_replace_callback('/([A-Z])/', $transform, $field);
			$data[$normalized] = $method->invoke(null);
        });

        return $data;
    }

    public function hydrate($object, array $data)
    {
        $transform = function ($key) {
			return 'set' . str_replace(' ', '', ucwords(str_replace('_', ' ', $key)));
		};
		$this->processMethods($object, 'set', function($field, ReflectionMethod $method) use ($data, $transform) {
			$method->invoke(null, $data[$transform($field)]);
        });
    }

    protected function processMethods($object, $prefix, $callback)
    {
        $reflection = new ReflectionClass($object);

		foreach ($reflection->getMethods() as $method) {
            if (!$method->isPublic() || 0 !== strpos($method->getName(), $prefix)) {
                continue;
            }
            $field = lcfirst(substr($method->getName(), strlen($prefix)));
            $callback($field, $method);
        }
    }
}



$book = new Book();
$book->setTitle('Harry potter');
$book->addGenre('Drama')->addGenre('Nosense');
$book->setAuthor(new Person('James', 'Bond'));

$hydrator = new ReflectionHydrator();

var_dump($hydrator->extract($book));
var_dump($hydrator->extract($book->getAuthor()));

$dryHydrator = new DryReflectionHydrator();

var_dump($dryHydrator->extract($book));
var_dump($dryHydrator->extract($book->getAuthor()));

Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: array(3) { ["genres"]=> object(ArrayObject)#2 (1) { ["storage":"ArrayObject":private]=> array(2) { [0]=> string(5) "Drama" [1]=> string(7) "Nosense" } } ["author"]=> object(Person)#3 (2) { ["firstName":protected]=> string(5) "James" ["lastName":protected]=> string(4) "Bond" } ["title"]=> string(12) "Harry potter" } array(2) { ["first_name"]=> string(5) "James" ["last_name"]=> string(4) "Bond" } Fatal error: Uncaught ReflectionException: Trying to invoke non static method Book::getGenres() without an object in /in/7Zour:141 Stack trace: #0 /in/7Zour(141): ReflectionMethod->invoke(NULL) #1 /in/7Zour(166): DryReflectionHydrator->{closure}('genres', Object(ReflectionMethod)) #2 /in/7Zour(139): DryReflectionHydrator->processMethods(Object(Book), 'get', Object(Closure)) #3 /in/7Zour(185): DryReflectionHydrator->extract(Object(Book)) #4 {main} thrown in /in/7Zour on line 141
Process exited with code 255.
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28: array(3) { ["genres"]=> object(ArrayObject)#2 (1) { ["storage":"ArrayObject":private]=> array(2) { [0]=> string(5) "Drama" [1]=> string(7) "Nosense" } } ["author"]=> object(Person)#3 (2) { ["firstName":protected]=> string(5) "James" ["lastName":protected]=> string(4) "Bond" } ["title"]=> string(12) "Harry potter" } array(2) { ["first_name"]=> string(5) "James" ["last_name"]=> string(4) "Bond" } Fatal error: Uncaught ReflectionException: Trying to invoke non static method Book::getGenres() without an object in /in/7Zour:141 Stack trace: #0 /in/7Zour(141): ReflectionMethod->invoke(NULL) #1 /in/7Zour(166): DryReflectionHydrator->{closure}('genres', Object(ReflectionMethod)) #2 /in/7Zour(142): DryReflectionHydrator->processMethods(Object(Book), 'get', Object(Closure)) #3 /in/7Zour(185): DryReflectionHydrator->extract(Object(Book)) #4 {main} thrown in /in/7Zour on line 141
Process exited with code 255.
Output for 7.0.0 - 7.0.33: array(3) { ["genres"]=> object(ArrayObject)#2 (1) { ["storage":"ArrayObject":private]=> array(2) { [0]=> string(5) "Drama" [1]=> string(7) "Nosense" } } ["author"]=> object(Person)#3 (2) { ["firstName":protected]=> string(5) "James" ["lastName":protected]=> string(4) "Bond" } ["title"]=> string(12) "Harry potter" } array(2) { ["first_name"]=> string(5) "James" ["last_name"]=> string(4) "Bond" } Fatal error: Uncaught ReflectionException: Non-object passed to Invoke() in /in/7Zour:141 Stack trace: #0 /in/7Zour(141): ReflectionMethod->invoke(NULL) #1 /in/7Zour(166): DryReflectionHydrator->{closure}('genres', Object(ReflectionMethod)) #2 /in/7Zour(142): DryReflectionHydrator->processMethods(Object(Book), 'get', Object(Closure)) #3 /in/7Zour(185): DryReflectionHydrator->extract(Object(Book)) #4 {main} thrown in /in/7Zour on line 141
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40: array(3) { ["genres"]=> object(ArrayObject)#2 (1) { ["storage":"ArrayObject":private]=> array(2) { [0]=> string(5) "Drama" [1]=> string(7) "Nosense" } } ["author"]=> object(Person)#3 (2) { ["firstName":protected]=> string(5) "James" ["lastName":protected]=> string(4) "Bond" } ["title"]=> string(12) "Harry potter" } array(2) { ["first_name"]=> string(5) "James" ["last_name"]=> string(4) "Bond" } Fatal error: Uncaught exception 'ReflectionException' with message 'Non-object passed to Invoke()' in /in/7Zour:141 Stack trace: #0 /in/7Zour(141): ReflectionMethod->invoke(NULL) #1 /in/7Zour(166): DryReflectionHydrator->{closure}('genres', Object(ReflectionMethod)) #2 /in/7Zour(142): DryReflectionHydrator->processMethods(Object(Book), 'get', Object(Closure)) #3 /in/7Zour(185): DryReflectionHydrator->extract(Object(Book)) #4 {main} thrown in /in/7Zour on line 141
Process exited with code 255.
Output for 5.3.0 - 5.3.29: array(3) { ["genres"]=> object(ArrayObject)#2 (1) { ["storage":"ArrayObject":private]=> array(2) { [0]=> string(5) "Drama" [1]=> string(7) "Nosense" } } ["author"]=> object(Person)#3 (2) { ["firstName":protected]=> string(5) "James" ["lastName":protected]=> string(4) "Bond" } ["title"]=> string(12) "Harry potter" } array(2) { ["first_name"]=> string(5) "James" ["last_name"]=> string(4) "Bond" } Fatal error: Uncaught exception 'ReflectionException' with message 'Non-object passed to Invoke()' in /in/7Zour:141 Stack trace: #0 /in/7Zour(141): ReflectionMethod->invoke(NULL) #1 /in/7Zour(166): {closure}('genres', Object(ReflectionMethod)) #2 /in/7Zour(142): DryReflectionHydrator->processMethods(Object(Book), 'get', Object(Closure)) #3 /in/7Zour(185): DryReflectionHydrator->extract(Object(Book)) #4 {main} thrown in /in/7Zour on line 141
Process exited with code 255.

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