我正在尝试使用 ajax 将一些变量发送到 php 页面,然后在 div 中显示它们,但它不起作用。
html代码:
<div id="center">
<form>
<input type="text" id="toSearch" class="inputText" title="Search for ...">
<select name="thelist1" id="ecoElem" class="comboBox">
<option>-- Ecosystem Element --</option>
</select>
<select name="thelist2" id="ecoActor" class="comboBox">
<option>-- Ecosystem Actor --</option>
</select>
<input type="button" value="Search" id="searchButton" onclick="loadData();">
</form>
</div>
<div id="resBox">
</div>
加载数据函数:
function loadData(){
if(window.XMLHttpRequest){
xmlhttp = new XMLHttpRequest();
}
else{
xmlhttp = new ActiveXObject('Microsoft.XMLHTTP');
}
searchT = document.getElementById('toSearch').value;
ecoElem = document.getElementById('ecoElem').value;
ecoActor = document.getElementById('ecoActor').value;
xmlhttp.onreadystatechange = function(){
if (xmlhttp.readyState == 4 && xmlhttp.status == 200){
document.getElementById('resBox').innerHTML = xmlhttp.responseText;
}
}
xmlhttp.open("POST","databaseRead.php",true);
xmlhttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
xmlhttp.send("text=" + searchT + "&elem=" + ecoElem + "&actor=" + ecoActor);}
最后是 php 页面:
<?php
$searchT = $_POST['text'];
$ecoElem = $_POST['elem'];
$ecoActor = $_POST['actor'];
echo $searchT;
?>
就是这样,我已经为此工作了几个小时,但仍然无法弄清楚。