所以我尝试使用jQuery.ajax从MySQL数据库调用数据,但是我无法在我的网络中看到结果。我有estacionamiento table here。然后我的api.php文件和index.php分别
<?php
include("connect.php");
$link=Connection();
$result = mysql_query("SELECT `estado` FROM `estacionamiento` ", $link); //query
$array = mysql_fetch_row($result); //fetch result
echo json_encode($array);
?>
<script src="js/jQuery.js"></script>
<script type="text/javascript">
$(function ()
{
//-----------------------------------------------------------------------
// 2) Send a http request with AJAX http://api.jquery.com/jQuery.ajax/
//-----------------------------------------------------------------------
$.ajax({
url: 'api.php', //the script to call to get data
data: "", //you can insert url argumnets here to pass to api.php
//for example "id=5&parent=6"
dataType: 'json', //data format
success: function(data) //on recieve of reply
{
alert('Successfully called');
console.log(data);
$('#output').html("<b> estado: </b>"+data);
}
});
});
</script>
我也能看到成功调用的警报,但在控制台日志中显示数据为[“”],但显然我在'estado'中有一些数据 你可以在这里看到结果。 (http://estacionamiento.site88.net/)
编辑:现在我必须获取许多变量,我会收到任何建议
我在想这样的事情,但它没有用
<?php
include("connect.php");
$link=Connection();
$data= array();
$result = mysqli_query($link, "SELECT * FROM `estacionamiento' ORDER BY timeStamp DESC",
while ($array = mysqli_fetch_array($result)){
$data[] = $array;
}
echo json_encode($data);
?>
答案 0 :(得分:0)
我猜您的it('scores an empty word as zero',function() { expect(new score('')).toEqual(0); });
只会返回api.php
。或者您只想返回一个数据?
["libre"]
然后,在你的ajax上(因为,你将返回一个不是数组的单个数据,我删除了<?php
/* ESTABLISH CONNECTION; REPLACE NECESSARY PARAMETERS BELOW */
$link = new mysqli("Host", "Username", "Password", "Database");
/* CHECK CONNECTION */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
$stmt = $link->prepare("SELECT estado FROM estacionamiento WHERE estado <> '' ORDER BY estado DESC"); /* PREPARE YOUR QUERY */
$stmt->execute(); /* EXECUTE QUERY */
$stmt->bind_result($estado); /* BIND RESULT TO THIS VARIABLE */
$stmt->fetch(); /* FETCH RESULT */
$stmt->close(); /* CLOSE PREPARED STATEMENT */
echo $estado;
?>
):
dataType: 'json'
也许你会对jQuery.get感兴趣,因为你只收到一个数据:
$.ajax({
url: 'api.php',
success: function(data)
{
alert('Successfully called');
console.log(data); /* WILL RETURN AS `libre` */
$('#output').html("<b> estado: </b>"+data); /* #output WILL HAVE `estado: libre` */
}
});