js怎么获取php的数组

[意识模糊]

php中存在省市对应数组
$info = array(
'北京'=>array('北京市'),
'福建'=>array("福州市","龙岩市","南平市","宁德市","莆田市","泉州市","三明市","厦门市","漳州市"),
'甘肃'=>array("白银市","定西市","甘南藏族自治州","嘉峪关","金昌市","酒泉市","兰州市","临夏回族自治州","陇南市","平凉市","庆阳市","天水市","武威市","张掖市"),
'广东'=>array("潮州市","东莞市","佛山市","广州市","河源市","惠州市","江门市","揭阳市","茂名市","梅州市","清远市","汕头市","汕尾市","韶关市","深圳市","阳江市","云浮市","湛江市","肇庆市","中山市","珠海市"),);


怎么在前端js或者这个数组

[改一下昵称]

转化成json格式
echo json_encode($info);

不知道你这是ajax还是？ 如果不是，那就输出一段Js 代码好了
<script>
var jsondata = <?php echo json_encode($info); ?>;
</script>

如果是ajax ，那么JQuery的ajax json函数很好用。或者用eval("'(" + ajaxjsondata + ")'");什么的也很方便

[意识模糊]

明白，还有这么一招，新手要走的路还很长啊，多谢了！

[001007009]

<?
	$arr = "[[1,2,3],[2,3,4]]";
	echo $arr;
?>
<script>
	var tmp = '<?=$arr?>';
	tmp = eval('('+tmp+')')
	alert(tmp.length)
</script>

这样也可以。

[网站推广优化yetaoaiueo]

<?
$arr = "[[1,2,3],[2,3,4]]";
echo $arr;
?>
<script>
var tmp = '<?=$arr?>';
tmp = eval('('+tmp+')')
alert(tmp.length)
</script>
这个好

[david5288]

一般都是json吧