昨天寫一個功能：點擊手機驗證的同時獲取json端的數據。
javascript代碼如下：
$(".check_mobile").click(function(){
var mobile = $('.mobile').val();
$.getJSON("http://www.test.com/user.php?mobile="+mobile+"&format=json&jsoncallback=?", function(data){
if (data.succ == 1) {
var html = "<input type='hidden' name='cityid' value='"+data.data.cityid+"'><input type='hidden' name='communityid' value='"+data.data.communityid+"'>";
$(".r_m").append(html);
}
});
});
user.php代碼如下：
<?php
if($_GET){
$mobile = $_GET['mobile'];
if ($mobile == 'XXXX') {
$user = array(
'city' =>'石家莊',
'cityid' =>'1',
'community' =>'紫晶悅城',
'communityid'=>'1'
);
$sucess = 1;
$return = array(
'succ' =>$sucess,
'data' => $user
);
}else {
$sucess = 2;
$return = array(
'succ' =>$sucess
);
}
echo json_encode($return);
}
?>
相應如下：
問題出來了：
在火狐浏覽器中： SyntaxError: missing ; before statement
解決方法如下：
header("Access-Control-Allow-Origin:http:www.test.com");
$b = json_encode($return);
echo "{$_GET['jsoncallback']}({$b})";
exit;
最後完整代碼：
<?php
header("Access-Control-Allow-Origin:http:www.test.com");
if($_GET){
$mobile = $_GET['mobile'];
if ($mobile == '18831167979') {
$user = array(
'city' =>'石家莊',
'cityid' =>'1',
'community' =>'紫晶悅城',
'communityid'=>'1'
);
$sucess = 1;
$return = array(
'succ' =>$sucess,
'data' => $user
);
}else {
$sucess = 2;
$return = array(
'succ' =>$sucess
);
}
$b = json_encode($return);
echo "{$_GET['jsoncallback']}({$b})";
exit;
}
?>
如果在 PHP 中少了 header("Access-Control-Allow-Origin:http:www.test.com"); 代碼，則會出現
XMLHttpRequest cannot load ''. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin ' ' is therefore not allowed access.
如果少了 echo "{$_GET['jsoncallback']}({$b})"; 代碼
在谷歌浏覽器中：Uncaught SyntaxError: Unexpected token :
在火狐浏覽器中：SyntaxError: missing ; before statement
