关于多维数组的一个有关问题

关于多维数组的一个问题，

<?php

	$class = [

		"group1" => [
			["name"=>"zs","age"=>"10","sex"=>"nan"],
			["name"=>"ls","age"=>"11","sex"=>"nan"],
			["name"=>"ww","age"=>"12","sex"=>"nv"]
		],

		 [
			["name"=>"zs","age"=>"10","sex"=>"nan"],
			["name"=>"ls","age"=>"11","sex"=>"nan"],
			["name"=>"ww","age"=>"12","sex"=>"nv"]
		],

		 [
			["name"=>"zs","age"=>"10","sex"=>"nan"],
			["name"=>"ls","age"=>"11","sex"=>"nan"],
			["name"=>"ww","age"=>"12","sex"=>"nv"]
		]
	];
	echo '<pre>';
	print_r( $class );
	echo '</pre>';

?>

这个老是不对啊，求解。
Parse error: syntax error, unexpected '[' in D:program fileswampwwwtext.php on line 3
------解决方案--------------------
你这个定义 的是什么？数组吗？ 按你的思路应该这样定义。

$class =array( "group1" => (
("name"=>"zs","age"=>"10","sex"=>"nan"),
("name"=>"ls","age"=>"11","sex"=>"nan"),
("name"=>"ww","age"=>"12","sex"=>"nv")
),
(
("name"=>"zs","age"=>"10","sex"=>"nan"),
("name"=>"ls","age"=>"11","sex"=>"nan"),
("name"=>"ww","age"=>"12","sex"=>"nv")
),
(
("name"=>"zs","age"=>"10","sex"=>"nan"),
("name"=>"ls","age"=>"11","sex"=>"nan"),
("name"=>"ww","age"=>"12","sex"=>"nv")
)
)) ;

------解决方案--------------------
你的代码要求 php >= 5.4