方法一 extract()函数

	$array = array(
		'a1' => 'a',
		'b1' => 'b',
		'c1' => 'c'
	);
	extract($array);
	echo $a1;

方法二

	$array = array(
		'a1' => 'a',
		'b1' => 'b',
		'c1' => 'c'
	);
	foreach($array as $key=>$val){
		$$key = $val;
	}
	echo $a1;