[英]Why isn't AJAX working?
I'm trying to perform a simple ajax call to a simple php script to test that ajax is working. 我试图对一个简单的php脚本执行一个简单的ajax调用,以测试ajax是否正常工作。
HTML: HTML:
<button id="hi">hi</button>
JS: JS:
<script type="text/javascript">
$( "#hi" ).click(function(){
var dataString = "hi";
$.ajax({
url: "custom_scripts/hi.php",
type: "POST",
dataType:'json',
data: dataString,
cache: false,
success: function(data){
if(data.auth==true){
alert("success: " + data.auth);
}
}
})
}); });
PHP: PHP:
<?php
$hi=$_POST['hi'];
$rVal=array("auth" => false);
if(isset($hi)){
$rVal['auth']=true;
} else {
$rVal['auth']=false;
}
echo json_encode($rVal);
?>
Are there any other scripts or libraries (from any language) that can interfere with ajax calls? 是否有其他脚本或库(来自任何语言)可能会干扰ajax调用? When I step through, it's reaching the call, it's not returning any data (and no error in console) ...
当我逐步执行时,它就到达了呼叫,它没有返回任何数据(并且控制台中没有错误)...
You just need to pass Ajax data as: 您只需要按以下方式传递Ajax数据:
data: "hi="+dataString,
Complete Ajax Example: 完整的Ajax示例:
$( "#hi" ).click(function(){
var dataString = "hi";
$.ajax({
url: "custom_scripts/hi.php",
type: "POST",
dataType:'json',
data: "hi="+dataString,
cache: false,
success: function(data){
if(data.auth==true){
alert("success: " + data.auth);
}
}
})
});
In your example, if you check browser console, you are getting Undefined Index Notice
. 在您的示例中,如果您检查浏览器控制台,则会收到
Undefined Index Notice
。
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