benchmark.php

<?php
require_once 'Benchmark/Timer.php';

class Benchmark {
    var $iteration = 100;
    
    function setup() {
    }
    
    final static function report() {
        $benches = array_filter(get_declared_classes(), 
            create_function('$class','
                return is_subclass_of($class, "Benchmark") && true;
            ')
        );
        
        $results = array();
        foreach ($benches as $bench) {
            $methods = array_filter(get_class_methods($bench), 
                create_function('$m','return strpos($m, "bench") === 0;')
            );
            $results[$bench] = array();
            $runner = new $bench;
            $runner->setup();
            $bm = new Benchmark_Timer(true);
            
            foreach($methods as $method) {
                foreach(range(1, $runner->iteration) as $i) {
                    $runner->$method();
                }
                $desc = strtr($method, array('bench' => '', '_' => ' '));
                $bm->setMarker($desc);
            }
            $results[$bench] = $bm->display();
        }
        return $results;
    }
}

?>

example_context_bm.php

<?php
require 'context.php';
require 'benchmark.php';

class BenchContext extends Benchmark {
    var $iteration = 10000;
    function setup() {
        $person = array(
            'name'=>'taylor', 
            'age'=>18, 
            'hobbies'=>array('watch tv','swimming', 'walking', 'kick boxing','watch tv','swimming', 'walking', 'kick boxing','watch tv','swimming', 'walking', 'kick boxing','watch tv','swimming', 'walking', 'kick boxing','watch tv','swimming', 'walking', 'kick boxing')
        );
        $this->context = new H2o_Context(compact('person'));
    }
    
    function bench_resolve_associative_array() {
        $this->context->resolve('person.name');
    }
    
    function bench_resolve_array_shortcut_first() {
        $this->context->resolve('person.hobbies.first');
    }
    
    function bench_resolve_array_shortcut_last() {
        $this->context->resolve('person.hobbies.last');
    }
    
    function bench_resolve_array_shortcut_length() {
        $this->context->resolve('person.hobbies.length');
    }
    
    function bench_undefined_variable() {
        $this->context->resolve('person.undefined');
    }
}

?>