本篇文章主要介绍ajax实现调用返回php接口返回json数据的方法,感兴趣的朋友参考下,希望对大家有所帮助。
php代码如下:
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js代码如下:
立即学习“PHP免费学习笔记(深入)”;
其中遇到了两个问题:
1、第一个问题:
Uncaught SyntaxError: Unexpected token :
解决方案如下:
This has just happened to me, and the reason was none of the reasons above. I was using the jQuery command getJSON and adding callback=? to use JSONP (as I needed to go cross-domain), and returning the JSON code {"foo":"bar"} and getting the error.
This is because I should have included the callback data, something like jQuery17209314005577471107_1335958194322({"foo":"bar"})
Here is the PHP code I used to achieve this, which degrades if JSON (without a callback) is used:
$ret['foo'] = "bar";
finish();
function finish() {
header("content-type:application/json");
if ($_GET['callback']) {
print $_GET['callback']."(";
}
print json_encode($GLOBALS['ret']);
if ($_GET['callback']) {
print ")";
}
exit;
}
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Hopefully that will help someone in the future.
2、第二个问题:
解析json数据。从上面的javascript中可以看到,我没有使用jquery.parseJSON()这些方法,开始使用这些方法,但是总是会报
VM219:1 Uncaught SyntaxError: Unexpected token o in JSON at position 1的错误,后来不用jquery.parseJSON()这个方法,反而一切正常。不知为何。
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