Ejemplos

If you want to use method closures and don't have PHP 5.3, perhaps you find useful the following function
<?php
    function get_method_closure($object,$method_name){
        if(method_exists(get_class($object),$method_name)){
            $func            = create_function( '',
                            '
                                $args            = func_get_args();
                                static $object    = NULL;
                                
                                /*
                                * Check if this function is being called to set the static $object, which 
                                * containts scope information to invoke the method
                                */
                                if(is_null($object) && count($args) && get_class($args[0])=="'.get_class($object).'"){
                                    $object = $args[0];
                                    return;
                                }

                                if(!is_null($object)){
                                    return call_user_func_array(array($object,"'.$method_name.'"),$args);
                                }else{
                                    return FALSE;
                                }'
                            );
            
            //Initialize static $object
            $func($object);
            
            //Return closure
            return $func;
        }else{
            return false;
        }        
    }
?>
Here is how you would use it:
<?php
class foo{
    public function bar($foo){
        return strtolower($foo);
    }
}

$foo = new foo();
$f = get_method_closure($foo,'bar');
echo $f("BAR");//Prints 'bar'
?>

Simple table generation using Reflection:<?phpclass A{    public    $name = 'Vasiliy';    public    $text = 'Once upon a time';}class B{    public    $name = 'Had bought a cat';    public    $text = 'named Valentine';}class grid{    public function build(  $dataSource, $headers, $fields  )    {        $result = '<table border="1">';        $result .= $this -> make_head( $headers );                foreach ($dataSource as $source):            $class_name = get_class($source);            if ( $class_name != FALSE ):                $reflector = new ReflectionClass($source);                echo 'Class "'. $class_name .'" found.<br />';                $result .= $this -> make_row( $reflector, $fields, $source );            endif;        endforeach;                $result .= '</table>';        return $result;    }        private function make_head( $headers )    {        $result = '<tr>';        foreach ( $headers as $header):            $result .= "<th>$header</th>";        endforeach;        $result .= '</tr>';        return $result;    }        private function make_row( $reflector, $fields, $source )    {        $result = '<tr>';        foreach ( $fields as $field ):            if ( $reflector -> hasProperty($field) ):                $property = $reflector -> getProperty($field);                $result .= '<td>'. $property -> getValue($source) .'</td>';            endif;        endforeach;        $result .= '</tr>';        return $result;    }}$A = new A;$B = new B;$C = 'Test';$dataSource = array( $A, $B, $C );$headers = array( 'H1', 'H2' );$fields = array( 'name', 'text' );$grid = new grid;$table = $grid -> build( $dataSource, $headers, $fields );echo $table;?>