例如有一个二维数组
$myarrnews=array();
$myarrnews =explode("||**||", $mystr); //内容来自$mystr，包括多条新闻记录
$myarrline=array();
$myarrline =explode("||%%||", $myarrnews[$i]); //$myarrline 是其中的一条记录，包括多个字段
print_r($myarrline); //每个新闻各个字段的集合，例如：Array ( [0] => 10 [1] => 2166 [2] => 创新。。。
现在需要这样的一个json串，格式为：（暂时设定为每页显示5条）
{
"ret": 0,
"data": {
"newslist": [
{
"title": "第1条新闻标题",
"commentcount": 0,
"source": "来源",
"nid": 10,
"digest": "新闻简介",
"ptime": "2012-03-28 14:11:43"
},
{
"title": "第2条新闻标题",
"commentcount": 0,
"source": "来源",
"nid": 9,
"digest": "新闻简介",
"ptime": "2012-03-28 13:12:56"
},
{
"title": "第3条新闻标题",
"commentcount": 0,
"source": "来源",
"nid": 8,
"digest": "新闻简介",
"ptime": "2012-03-28 12:21:11"
},
{
"title": "第4条新闻标题",
"commentcount": 0,
"source": "来源",
"nid": 7,
"digest": "新闻简介",
"ptime": "2012-03-28 11:21:00"
},
{
"title": "第5条新闻标题",
"commentcount": 1,
"source": "来源",
"nid": 5,
"digest": "新闻简介",
"ptime": "2012-02-18 19:20:01"
}
],
"totalnum": 5
},
"msg": "ok"
}
//----------------------------
php语法该如何书写呢？请大家帮忙，急用！
------解决方案--------------------
$ar = arrat(
' ret' => 0,
'data' => array(
'newslist' => $newslist,