Ajax结果依赖于PHP结果
[英]Ajax result dependant on PHP result
问题描述
I have a PHP function that gives an response for an alert if the result is > 0 however I am getting an empty alert if the result is 0 
我有一个PHP函数，给出了一个警告的响应如果结果> 0 ，如果结果是不过我得到一个空的警报0
How can I stop this? 我怎么能阻止这个？
function urlCheck()
{
$website_id = $this->input->post('website_id');
$post_title = $this->input->post('post_title');
$urlCheck = $this->page_model->pageURLCheck($post_title, $moviesparx_website_id);
if($urlCheck > 0)
{
echo "This page name already exists";
}
}
jQuery Ajax: jQuery Ajax：
$.ajax({
url:url,
data:data ,
type: 'POST',
success: function (resp) {
alert(resp);
},
error: function (resp) {
console.log(data);
}
});
5 个解决方案
解决方案1
1 已采纳 2013-10-25 04:48:06
That is because you are sending the response only if result > 0.Send another response if your result is <= 0.So write an else case like the following. 这是因为只有当结果> 0时才发送响应。如果结果是<= 0，则发送另一个响应。因此写下如下情况的其他情况。
function urlCheck()
{
$website_id = $this->input->post('website_id');
$post_title = $this->input->post('post_title');
$urlCheck = $this->page_model->pageURLCheck($post_title, $moviesparx_website_id);
if($urlCheck > 0)
{
echo 1;
}
else{
echo 0;
}
}
Ajax 阿贾克斯
$.ajax({
url:url,
data:data ,
type: 'POST',
success: function (resp) {
if(resp){
alert('This page name already exists');
}
},
error: function (resp) {
console.log(data);
}
});
解决方案2
1 2013-10-25 04:52:06
try this one: 试试这个：
$.ajax({
url:url,
data:data ,
type: 'POST',
success: function (resp) {
if(resp == '')
//do something
else
alert(resp);
}
});
解决方案3
0 2013-10-25 04:49:05
You could do another check in the client side: 您可以在客户端进行另一项检查：
Server 服务器
<?php
if ($urlCheck > 0) {
echo '1 - This page name already exists.';
} else {
echo '0 - New page name.';
}
?>
Client: 客户：
// success handler
success: function(resp) {
var realResp = resp.split('-');
if (realResp[0] == '1') {
alert(realResp[1]);
}
}
解决方案4
0 2013-10-25 04:52:24
Try something like this.. 试试这样的东西......
if($urlCheck > 0) {
echo "This page name already exists";
} else {
echo -1;
}
Client - 客户 -
success: function (resp) {
if(resp != -1) {
alert(resp);
}
}
解决方案5
0 2013-10-25 05:17:20
here is a fully working example.. NOTE: since you are using a class I had to improvise with something 这是一个完全有效的例子。注意：因为你正在使用一个我必须即兴创作的课程
<?php
function urlCheck ($urlCheck)
{
if ($urlCheck > 0) echo "This page name already exists"; exit;
}
if (isSet ($_POST ['send']))
{
urlCheck (1);
}
?>
<!DOCTYPE html>
<html>
<head>
<title>blah</title>
<meta charset="utf-8">
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script>
$(document).ready (function (){
$.ajax({
url: "index.php",
data: {send: "data"},
type: 'POST',
}).fail (function () {
console.log ("failed");
}).done (function (data){ //dont use success
alert (data);
});
});
</script>
</head>
<body>
</body>
</html>
Here is why I state not to use success: 这就是我说不使用成功的原因：
Deprecation Notice
The jqXHR.success(), jqXHR.error(), and jqXHR.complete() callback methods introduced in jQuery 1.5 are deprecated as of jQuery 1.8.
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