我回来"真" /"假" (文本)从PHP到javascript通过AJAX,但我的 JAVASCRIPT IF条件似乎没有执行,即使条件是正确的。
var request = $.ajax({
type: "POST",
dataType: "text",
url: "",
data: {
'clientSecret': clientSecret,
'oauthCode':oauthCode
},
});
request.done(function(msg) {
alert(msg);
if(msg=="false"){ <----- DOES NOT EXECUTE
//do stuff
}
});
request.fail(function(jqXHR, textStatus) {
alert( "Request failed: " + textStatus );
});
if(checkData($key,$oauthCode)==true){
header("Content-Type: text/plain");
echo "true";
}
else{
header("Content-Type: text/plain");
echo "false";
}
Javascript成功提醒&#34; false&#34;,
但if condtion永远不会被执行。 返回数据类型有问题还是?我在这里失踪了什么?
答案 0 :(得分:0)
只是一个建议,因为当你发现问题时我已经开始研究这个问题的替代方案。
我不建议您使用标题来执行此类任务。正如你所看到的,它们对预先输出是明智的。您可以使用json
方法(dataType: 'json'
) - 正如@charlietfl建议的那样,或使用dataType = 'html'
。
json看起来像这样:
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
<meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=yes" />
<meta charset="UTF-8" />
<!-- The above 3 meta tags must come first in the head -->
<title>Test</title>
<!-- jQuery -->
<script src="https://code.jquery.com/jquery-3.2.1.min.js" type="text/javascript" integrity="sha256-hwg4gsxgFZhOsEEamdOYGBf13FyQuiTwlAQgxVSNgt4=" crossorigin="anonymous"></script>
<script type="text/javascript">
function startTestScript() {
var clientSecret = $('#clientSecret').val();
var oauthCode = $('#oauthCode').val();
var ajax = $.ajax({
method: 'post',
dataType: 'json',
url: 'checkOauth.php',
data: {
'clientSecret': clientSecret,
'oauthCode': oauthCode
}
});
ajax.done(function (response, textStatus, jqXHR) {
if (response === true) {
alert('Response is ' + response + '. COOL!');
} else {
alert('Response is ' + response + '. UPS!');
}
});
ajax.fail(function (jqXHR, textStatus, errorThrown) {
alert('Request failed: ' + textStatus + '\n' + errorThrown);
});
ajax.always(function (response, textStatus, jqXHR) {
// alert('Finished executing this cool script.');
});
}
</script>
<style type="text/css">
body {
padding-top: 30px;
text-align: center;
}
button {
padding: 10px;
background-color: #8daf15;
color: #fff;
border: none;
}
</style>
</head>
<body>
<div>
<label for="clientSecret">Client secret (int)</label>
<input type="text" id="clientSecret" name="clientSecret" value="123">
<br/><br/>
<label for="oauthCode">OAuth code (int)</label>
<input type="text" id="oauthCode" name="oauthCode" value="123">
<br/><br/>
<button type="button" name="testButton" onclick="startTestScript();">
Start ajax
</button>
</div>
</body>
</html>
<?php
/**
* Check data.
*
* @param mixed $value1
* @param mixed $value2
* @return TRUE if values are equal, FALSE otherwise.
*/
function checkData($value1, $value2) {
return intval($value1) === intval($value2);
}
// Fetch posted values.
$clientSecret = isset($_POST['clientSecret']) ? $_POST['clientSecret'] : 0;
$oauthCode = isset($_POST['oauthCode']) ? $_POST['oauthCode'] : 0;
// Check data.
$dataIsValid = checkData($clientSecret, $oauthCode);
// Output the JSON-encoded result of checking data.
echo json_encode($dataIsValid);