Online PHP editor | perf for ICL2D

@ 2016-01-12T11:54:35Z

<?php
namespace Magnus;

class ObjectDispatch {

	/* This version of object dispatch makes use of yield syntax which is only available from PHP 5.5 onwards.
	 * If support for lower level versions are needed, another version of this dispatcher can be written to eliminate yield syntax.
	 */
	
	public function routeIterator(&$path) {
		while (!empty($path)) {
			yield end($path);
			array_pop($path);
			/* This prevents having to put back a value in the event of a 
			 * readjustment in the dispatch path.
			 * Testing indicates that it's better to do array maninpulation than it is
			 * to implement SplDoublyLinkedList for deque behavior. Likewise, 
			 * simply tracking the index is a bit slower and can add complexity 
			 * when dealing with reorients/redispatches. 
			 */
		}
	}

	public function __invoke($context, $root) {
		$log              = $context->getLogger();
		$path             = $context->getRequestPath();
		$last             = '';
		$parent           = null;
		$current          = $root;
		$controllerPrefix = $context->getControllerPrefix();
		
		if ($context->getAppMode() === 'DEBUG' && $log !== null) {
			$log->addDebug('Starting Object Dispatch', [
				'request' => $context->getRequestURI(),
				'path'    => var_export($path, true),
				'root'    => var_export($root, true)
			]);
		}

		foreach ($this->routeIterator($path) as $chunk) {
			if ($context->getAppMode() === 'DEBUG' && $log !== null) {
				$log->addDebug('Beginning dispatch step.', [
					'chunk'   => $chunk,
					'path'    => var_export($path, true),
					'current' => var_export($current, true)
				]);
			}

			if (!is_object($current) || class_exists($controllerPrefix . $current)) {
				if ($context->getAppMode() === 'DEBUG' && $log !== null) {
					$log->addDebug('Instantiating current class', [
						'request' => $context->getRequestURI(),
						'current' => $current
					]);
				}
                
                $resolvedClass = $controllerPrefix . $current;
				$current = new $resolvedClass($context);
			}

			if (is_object($current)) {
				$parent = $current;
			}

			if (in_array($chunk, get_class_methods($parent))) {
				if ($context->getAppMode() === 'DEBUG' && $log !== null) {
					$log->addDebug('Found an endpoint', [
						'request'    => $context->getRequestURI(),
						'isEndpoint' => true,
						'parent'    => var_export($parent, true),
						'handler'    => $chunk,
						'arguments'  => var_export($path, true)
					]);
				}

				yield array($parent, $chunk, $path, true);

			} elseif (in_array($chunk, get_object_vars($parent))) {
				if ($context->getAppMode() === 'DEBUG' && $log !== null) {
					$log->addDebug('Found a property', [
						'request'    => $context->getRequestURI(),
						'property'   => $chunk,
						'parent'  => var_export($parent, true)
					]);
				}

				$current = $parent->chunk;

			} elseif (method_exists($parent, 'lookup')) {
				try {
					list($current, $consumed) = $parent->lookup($path);
					$chunk = implode('/', $consumed);
					$path = array_slice($path, 0, count($path) - count($consumed));
				} catch (Exception $e) {
					throw new HTTPNotFound();
				}

			} else {
				throw new HTTPNotFound();
			}

			yield array(explode('/', $last), $parent, false);
			$last = $chunk;

		}

		if ($context->getAppMode() === 'DEBUG' && $log !== null) {
			$log->addDebug('No endpoint found', [
				'request' => $context->getRequestURI(),
				'current' => var_export($current),
				'parent'  => var_export($parent)
			]);
		}

		if (!is_object($current) && class_exists($controllerPrefix . $current)) {
		    $resolvedClass = $controllerPrefix . $current;
			$current = new $resolvedClass($context);
		}

		if (is_callable($current)) {
			yield array($current, $last, $path, true);
		} elseif (is_callable($parent)) {
			yield array($parent, $last, $path, true);
		}

	}

}

class Context {
	protected $requestURI;
	protected $requestPath;
	protected $appMode;
	protected $logger;
	protected $controllerPrefix;

	public function __construct(Array $config) {
		$this->requestURI = isset($config['requestURI']) ? $config['requestURI'] : '/';
		$this->appMode = isset($config['appMode']) ? $config['appMode'] : 'DEVELOPMENT';
		$this->logger = isset($config['logger']) ? $config['logger'] : null;
		$this->controllerPrefix = isset($config['controllerPrefix']) ? $config['controllerPrefix'] : __NAMESPACE__ . '\\';
		
		$this->requestPath = explode('/', str_replace('\\', '/', strtolower($this->requestURI)));
		if (end($this->requestPath) === '') {
		    array_pop($this->requestPath);
		}
		$this->requestPath = array_reverse($this->requestPath);
		if (end($this->requestPath) === '') {
		    array_pop($this->requestPath);
		}

	}

	public function getRequestURI() {
		return $this->requestURI;
	}

	public function getRequestPath() {
		return $this->requestPath;
	}

	public function getAppMode() {
		return $this->appMode;
	}

	public function getLogger() {
		return $this->logger;
	}

	public function getControllerPrefix() {
		return $this->controllerPrefix;
	}

}

class HTTPNotFound extends \Exception {
	public function __construct($message, $code = 0, Exception $previous = null) {
        parent::__construct($message, $code, $previous);
    }
}

class ScreenLog {
	public function __call($methodName, $args) {
		echo var_export($args, true) . "\n";
	}
}

class RootController {
	public $home = 'HomeController';

	public function __invoke($args = array()) {
		return "Root controller index";
	}

}

class HomeController {
	public $home = 'HomeController';

	public function __invoke($args = array()) {
		return "Home controller index";
	}

}

$context = new Context([
	'requestURI' => '/home',
	'logger'     => new ScreenLog()
]);

$dispatch = new ObjectDispatch();

try {
	foreach ($dispatch($context, 'RootController') as $signal) {
		list($object, $chunk, $path, $isEndpoint) = $signal;
		if ($isEndpoint) {
		    if (!empty($chunk)) {
		        echo $object->$chunk($path);
		    } else {
		        echo $object($path);
		    }
		}
	}
} catch (Exception $e) {
	echo "Bummer! " . $e->getMessage();
}

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

Version	System time (s)	User time (s)	Memory (MiB)
8.3.6	0.010	0.006	17.00
8.3.5	0.009	0.006	16.75
8.3.4	0.009	0.009	19.04
8.3.3	0.011	0.003	18.97
8.3.2	0.004	0.004	20.38
8.3.1	0.003	0.005	21.90
8.3.0	0.004	0.004	21.98
8.2.18	0.009	0.006	17.13
8.2.17	0.013	0.006	22.96
8.2.16	0.007	0.007	20.55
8.2.15	0.008	0.000	24.18
8.2.14	0.004	0.004	24.66
8.2.13	0.007	0.000	21.03
8.2.12	0.008	0.000	26.35
8.2.11	0.003	0.007	19.32
8.2.10	0.009	0.003	18.05
8.2.9	0.008	0.000	19.30
8.2.8	0.005	0.005	17.97
8.2.7	0.009	0.000	17.75
8.2.6	0.005	0.003	18.05
8.2.5	0.003	0.007	18.09
8.2.4	0.000	0.008	22.33
8.2.3	0.004	0.004	19.73
8.2.2	0.004	0.007	17.87
8.2.1	0.000	0.008	18.32
8.2.0	0.000	0.008	18.13
8.1.28	0.015	0.006	25.92
8.1.27	0.009	0.000	22.08
8.1.26	0.008	0.000	28.09
8.1.25	0.004	0.004	28.09
8.1.24	0.000	0.009	22.23
8.1.23	0.006	0.006	17.96
8.1.22	0.000	0.008	17.88
8.1.21	0.003	0.006	18.77
8.1.20	0.009	0.000	17.48
8.1.19	0.004	0.004	17.35
8.1.18	0.006	0.003	18.10
8.1.17	0.007	0.007	18.45
8.1.16	0.004	0.004	21.00
8.1.15	0.007	0.003	20.76
8.1.14	0.000	0.008	19.63
8.1.13	0.007	0.000	17.78
8.1.12	0.000	0.007	17.63
8.1.11	0.000	0.007	17.61
8.1.10	0.000	0.008	17.61
8.1.9	0.004	0.004	17.48
8.1.8	0.002	0.005	17.65
8.1.7	0.003	0.003	17.57
8.1.6	0.000	0.009	17.71
8.1.5	0.003	0.006	17.56
8.1.4	0.003	0.006	17.62
8.1.3	0.003	0.005	17.66
8.1.2	0.004	0.004	17.76
8.1.1	0.000	0.008	17.61
8.1.0	0.000	0.008	17.54
8.0.30	0.003	0.009	18.77
8.0.29	0.005	0.003	16.88
8.0.28	0.002	0.005	18.60
8.0.27	0.004	0.004	17.43
8.0.26	0.003	0.003	17.31
8.0.25	0.004	0.004	17.03
8.0.24	0.004	0.004	17.02
8.0.23	0.002	0.005	17.05
8.0.22	0.004	0.004	17.06
8.0.21	0.004	0.004	17.10
8.0.20	0.004	0.004	17.22
8.0.19	0.000	0.008	17.20
8.0.18	0.000	0.007	17.07
8.0.17	0.004	0.004	17.14
8.0.16	0.004	0.004	16.98
8.0.15	0.000	0.007	17.07
8.0.14	0.004	0.004	17.03
8.0.13	0.000	0.007	13.52
8.0.12	0.004	0.004	16.96
8.0.11	0.000	0.008	17.10
8.0.10	0.003	0.005	17.00
8.0.9	0.004	0.004	16.94
8.0.8	0.003	0.012	17.16
8.0.7	0.008	0.000	17.09
8.0.6	0.000	0.008	17.15
8.0.5	0.004	0.004	17.13
8.0.3	0.007	0.009	17.09
8.0.2	0.012	0.009	17.40
8.0.1	0.003	0.006	17.27
8.0.0	0.010	0.010	16.88
7.4.33	0.000	0.006	16.79
7.4.32	0.000	0.007	16.79
7.4.30	0.004	0.004	16.75
7.4.29	0.009	0.000	16.72
7.4.28	0.004	0.004	16.65
7.4.27	0.003	0.005	16.59
7.4.26	0.007	0.000	16.64
7.4.25	0.004	0.004	16.46
7.4.24	0.000	0.007	16.70
7.4.23	0.000	0.007	16.72
7.4.22	0.009	0.010	16.68
7.4.21	0.012	0.004	16.69
7.4.20	0.004	0.004	16.44
7.4.16	0.000	0.016	16.57
7.4.15	0.015	0.004	17.40
7.4.14	0.012	0.010	17.86
7.4.13	0.011	0.008	16.70
7.4.12	0.009	0.008	16.67
7.4.11	0.011	0.007	16.72
7.4.10	0.007	0.010	16.77
7.4.9	0.010	0.007	16.72
7.4.8	0.009	0.009	19.39
7.4.7	0.005	0.007	16.64
7.4.6	0.007	0.010	16.66
7.4.5	0.008	0.005	16.67
7.4.4	0.011	0.005	16.78
7.4.3	0.003	0.014	16.57
7.4.0	0.004	0.013	15.06
7.3.33	0.006	0.000	13.60
7.3.32	0.006	0.000	13.50
7.3.31	0.003	0.005	16.54
7.3.30	0.003	0.003	16.59
7.3.29	0.000	0.007	16.53
7.3.28	0.009	0.010	16.60
7.3.27	0.015	0.003	17.40
7.3.26	0.012	0.007	16.49
7.3.25	0.010	0.008	16.69
7.3.24	0.007	0.010	16.59
7.3.23	0.009	0.009	16.48
7.3.21	0.011	0.007	16.65
7.3.20	0.012	0.006	19.39
7.3.19	0.012	0.009	16.61
7.3.18	0.013	0.007	16.61
7.3.17	0.015	0.008	16.77
7.3.16	0.003	0.013	16.87
7.3.12	0.008	0.009	15.25
7.3.11	0.003	0.014	15.02
7.3.10	0.005	0.010	14.61
7.3.9	0.011	0.008	14.92
7.3.8	0.010	0.002	15.01
7.3.7	0.010	0.008	14.91
7.3.6	0.006	0.006	14.97
7.3.5	0.006	0.011	14.96
7.3.4	0.003	0.013	14.96
7.3.3	0.004	0.010	15.05
7.3.2	0.007	0.007	16.62
7.3.1	0.009	0.002	16.58
7.3.0	0.007	0.007	16.71
7.2.33	0.018	0.000	16.62
7.2.32	0.010	0.007	16.85
7.2.31	0.008	0.013	16.88
7.2.30	0.006	0.015	16.74
7.2.29	0.013	0.004	16.66
7.2.25	0.008	0.012	15.04
7.2.24	0.006	0.014	15.20
7.2.23	0.002	0.012	15.15
7.2.22	0.005	0.010	15.28
7.2.21	0.010	0.007	15.22
7.2.20	0.005	0.010	15.18
7.2.19	0.007	0.007	15.11
7.2.18	0.004	0.011	15.06
7.2.17	0.007	0.010	14.95
7.2.6	0.006	0.009	16.75
7.2.0	0.004	0.012	19.50
7.1.33	0.010	0.003	15.81
7.1.32	0.008	0.010	15.94
7.1.31	0.005	0.010	15.71
7.1.30	0.006	0.008	15.79
7.1.29	0.002	0.012	15.76
7.1.28	0.007	0.005	15.69
7.1.27	0.003	0.009	15.62
7.1.26	0.003	0.006	15.66
7.1.20	0.006	0.006	15.71
7.1.10	0.003	0.010	17.87
7.1.7	0.006	0.006	17.16
7.1.6	0.011	0.014	19.40
7.1.5	0.008	0.008	17.08
7.1.0	0.007	0.073	22.36
7.0.20	0.078	0.000	14.80
7.0.10	0.010	0.080	20.18
7.0.9	0.020	0.060	20.14
7.0.8	0.003	0.060	20.28
7.0.7	0.010	0.073	20.01
7.0.6	0.000	0.047	20.08
7.0.5	0.000	0.053	20.53
7.0.4	0.013	0.037	20.07
7.0.3	0.003	0.043	20.11
7.0.2	0.000	0.050	20.15
7.0.1	0.013	0.033	20.00
7.0.0	0.000	0.043	20.10
5.6.28	0.003	0.057	20.85
5.6.25	0.010	0.033	20.57
5.6.24	0.007	0.063	20.65
5.6.23	0.007	0.037	20.65
5.6.22	0.007	0.043	20.63
5.6.21	0.007	0.060	20.82
5.6.20	0.013	0.030	21.08
5.6.19	0.000	0.047	20.99
5.6.18	0.003	0.060	21.11
5.6.17	0.017	0.033	21.05
5.6.16	0.010	0.067	21.05
5.6.15	0.003	0.067	21.11
5.6.14	0.003	0.073	21.09
5.6.13	0.010	0.080	20.98
5.6.12	0.003	0.050	21.12
5.6.11	0.003	0.083	21.17
5.6.10	0.003	0.077	21.14
5.6.9	0.007	0.083	21.10
5.6.8	0.007	0.077	20.57
5.6.7	0.010	0.070	20.39
5.6.6	0.013	0.070	20.50
5.6.5	0.013	0.070	20.40
5.6.4	0.007	0.073	20.50
5.6.3	0.007	0.080	20.51
5.6.2	0.010	0.080	20.54
5.6.1	0.003	0.083	20.36
5.6.0	0.020	0.067	20.37
5.5.38	0.013	0.030	20.45
5.5.37	0.003	0.067	20.49
5.5.36	0.000	0.057	20.48
5.5.35	0.000	0.043	20.49
5.5.34	0.007	0.047	20.98
5.5.33	0.003	0.067	20.86
5.5.32	0.003	0.040	20.88
5.5.31	0.003	0.073	20.97
5.5.30	0.023	0.063	20.85
5.5.29	0.003	0.080	20.89
5.5.28	0.007	0.083	20.89
5.5.27	0.003	0.087	20.84
5.5.26	0.013	0.073	20.97
5.5.25	0.000	0.090	20.77
5.5.24	0.017	0.070	20.24
5.5.23	0.003	0.080	20.29
5.5.22	0.010	0.070	20.38
5.5.21	0.017	0.070	20.21
5.5.20	0.010	0.073	20.32
5.5.19	0.003	0.077	20.34
5.5.18	0.003	0.077	20.29
5.5.16	0.013	0.047	20.15
5.5.15	0.007	0.080	20.19
5.5.14	0.003	0.080	20.33
5.5.13	0.013	0.077	20.21
5.5.12	0.013	0.070	20.22
5.5.11	0.013	0.070	20.25
5.5.10	0.000	0.063	20.15
5.5.9	0.020	0.060	20.16
5.5.8	0.007	0.050	20.22
5.5.7	0.007	0.080	20.12
5.5.6	0.007	0.077	20.09
5.5.5	0.003	0.080	20.16
5.5.4	0.007	0.080	20.17
5.5.3	0.003	0.070	20.11
5.5.2	0.010	0.073	20.13
5.5.1	0.007	0.077	20.18
5.5.0	0.010	0.073	20.13

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