php中ajax post 使用方法前后端详细方法带文件
引入ajax文件点击下载jquery-1.9.1.js文件
//ajax发送数据
$.ajax({
url: "http://127.0.0.90/jieshou.php",
type: "post",
data: {uid:"123"}
}).done(function(data) {
alert('成功返回信息');
}).error(function(data) {
console.log('妄自');
});
//数据发送结束后端接收参考
<?php
header("Content-type: text/html; charset=utf-8");
header('Access-Control-Allow-Origin: *');
header('Access-Control-Allow-Headers: Origin, X-Requested-With, Content-Type, Accept');
// $ym = $_SERVER['DOCUMENT_ROOT'];
// include ($ym."/db.php");
date_default_timezone_set('Asia/Chongqing');
$uid = $_POST['uid'];
echo $uid;
exit;
$lksj =date("Y-m-d H:i");
$sql = "update cb_zwyjc set lksj='$lksj' where id='$uid'";
$rs = mysqli_query($db,$sql);
if ($rs) {
$arr['result'] = 1;
exit(json_encode($arr));
}else{
$arr['result'] = 2;
exit(json_encode($arr));
}
?>
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