example of map_array() with "use" to pass in variable

gistfile1.txt

	function map_array()
	{
		
		$names = array('Foo', 'Bar', 'Baz', 'Buzz');
		$tweeps = array();
		                                                                                
		foreach ($names as $name) {
		    $tmp = new StdClass;
		    $tmp->name = $name;
		    $tmp->age = rand(2,7);
		    array_push($tweeps, $tmp);
		}

		$check_string = 'age';
		                                                                                
		$str = "Mentioned by " . implode(", ", array_map(function($t) use ($check_string) { return $t->{$check_string}; }, $tweeps));
		echo $str . "\n";

	}