This article mainly shares with you the method examples of submitting data in $.post method and returning data in json format. I hope it can help you.
js part
<script>function getType(url, id) {
$.post(url, {'id': id}, function(res) {
$("input[name='formula']").val(res.finally);
$("input[name='formula2']").val(res.proportion);
}, 'json');
}</script>PHP part
public function gettype(){
$where['id'] = trim($_POST['id']); $info = M('formula')->where($where)->find(); echo json_encode($info);exit;
}html part
<input name="formula" class="form-control" type="text"><input name="formula" class="form-control" type="text"><select name='type' select" onchange="getType('Deal/gettype', this.value);"> <option value="海口">海口</option> <option value="海口">海口</option> <option value="海口">海口</option></select>
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