我使用ajax來獲取我的數據庫信息和即時通訊運行到一個問題。沒有顯示任何回報。Php Ajax數據庫信息獲取沒有從batabase返回
我有一個選擇列表,需要一個js腳本來運行onchange,它要求php文件獲取數據庫信息並將其返回到表中。
問題是,在onchange事件中,我有一個表格,只顯示錶頭,但沒有下面的信息。我檢查控制檯和Im得到的錯誤是這樣的:
GET http://lineofcode.com/favicon.ico 401(未授權)
那顯示的唯一錯誤。我究竟做錯了什麼?爲什麼我的桌子是空白的?
HTML
<p>Please select a team name from the list to view table</p>
<form>
<select name="users" onchange="showTeam(this.value)">
<option value="">Select a team:</option>
<option value="1">bobcats</option>
<option value="2">rangers</option>
<option value="3">hawks</option>
<option value="4">rockets</option>
</select>
</form>
<br>
<div id="teamInfo"><b></b></div>
JS腳本
// script for onchange event
function showTeam(str) {
if (str == "") {
document.getElementById("teamInfo").innerHTML = "";
return;
} else {
if (window.XMLHttpRequest) {
// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp = new XMLHttpRequest();
} else {
// code for IE6, IE5
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange = function() {
if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
document.getElementById("teamInfo").innerHTML = xmlhttp.responseText;
}
};
xmlhttp.open("GET","phpfiles/getTeam.php?q="+str,true);
xmlhttp.send();
}
}
PHP文件
<!DOCTYPE html>
<html>
<head>
<style>
table {
width: 100%;
border-collapse: collapse;
}
table, td, th {
border: 1px solid black;
padding: 5px;
}
th {text-align: left;}
</style>
</head>
<body>
<?php
$q = intval($_GET['q']);
$con = mysqli_connect('localhost','....','.....','....');
if (!$con) {
die('Could not connect: ' . mysqli_error($con));
}
mysqli_select_db($con,"ajax_demo");
$sql="SELECT * FROM teams WHERE teamname = '".$q."'";
$result = mysqli_query($con,$sql);
echo "<table>
<tr>
<th>teamname</th>
<th>city</th>
<th>bestplayer</th>
<th>yearformed</th>
<th>website</th>
</tr>";
while($row = mysqli_fetch_array($result)) {
echo "<tr>";
echo "<td>" . $row['teamname'] . "</td>";
echo "<td>" . $row['city'] . "</td>";
echo "<td>" . $row['bestplayer'] . "</td>";
echo "<td>" . $row['yearformed'] . "</td>";
echo "<td>" . $row['website'] . "</td>";
echo "</tr>";
}
echo "</table>";
mysqli_close($con);
?>
您的JavaScript代碼需要HTML片段,但PHP代碼正在返回一個不完整的HTML文檔。 – symcbean