php 如何处理这个json数据， '{"groupOp":"AND","rules":[{"field":"sn","op":"eq","data":"ddde"}]}'这个 20
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<?php
$json = '{"groupOp":"AND","rules":[{"field":"sn","op":"eq","data":"ddde"}]}';
$arr = (array) json_decode($json,true);
echo '当前生成的查询语句是：'. $arr['rules'][0]['field'] . ' ' . $arr['rules'][0]['op'] . ' ' . $arr['rules'][0]['data'];
?>
$json = '{"groupOp":"AND","rules":[{"field":"sn","op":"eq","data":"ddde"}]}';
$arr = (array) json_decode($json,true);
echo '当前生成的查询语句是：'. $arr['rules'][0]['field'] . ' ' . $arr['rules'][0]['op'] . ' ' . $arr['rules'][0]['data'];
?>
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