有人能教我如何根据数据中给定的键值对JSON数据进行分组吗。下面我举了一个例子。
我有以下JSON数据。
$print = '{"Table":[
{"Column":2,"Length":1,"Number":"A4","Row":12},
{"Column":2,"Length":1,"Number":"A3","Row":11},
{"Column":2,"Length":1,"Number":"A2","Row":9},
{"Column":2,"Length":1,"Number":"A1","Row":8},
{"Column":3,"Length":1,"Number":"B4","Row":12},
{"Column":3,"Length":1,"Number":"B3","Row":11},
{"Column":3,"Length":1,"Number":"B2","Row":9},
{"Column":3,"Length":1,"Number":"B1","Row":8}],"ResponseStatus":200,"Message":null}';
我想根据下面给出的"行"值对这些数据进行分组。
$print = '{"Table":[
{"Column":2,"Length":1,"Number":"A4","Row":12},
{"Column":3,"Length":1,"Number":"B4","Row":12},
{"Column":2,"Length":1,"Number":"A3","Row":11},
{"Column":3,"Length":1,"Number":"B3","Row":11},
{"Column":2,"Length":1,"Number":"A2","Row":9},
{"Column":3,"Length":1,"Number":"B2","Row":9},
{"Column":2,"Length":1,"Number":"A1","Row":8},
{"Column":3,"Length":1,"Number":"B1","Row":8}],"ResponseStatus":200,"Message":null}';
我在谷歌上搜索了好几个小时，但我找不到解决这个问题的办法。我想用PHP将其分组。请有人帮我解决这个问题。提前谢谢。
$json = json_decode($print, true);
usort($json['Table'], function($a, $b) { return $a['Row'] < $b['Row']; } );
$print = json_encode($json);