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Homephp教程PHP源码php跨域提交form表单2种方法

我们知道浏览器因为考虑到安全问题一般情况下是不支持跨域提交form表单了,但有时我们工作又需要了,下面就来看看一篇跨域提交form表单例子。

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远程出于安全因素考虑,直接跨域访问是不允许的,下面介绍二种跨域的方法。

一,通过php curl

function curlPost($url,$params) 

 $postData = ''; 
 foreach($params as $k => $v) 
 { 
 $postData .= $k . '='.$v.'&'; 
 } 
 rtrim($postData, '&'); 
 $ch = curl_init(); 
 curl_setopt($ch,CURLOPT_URL,$url); 
 curl_setopt($ch,CURLOPT_RETURNTRANSFER,true); 
 
 curl_setopt($ch,CURLOPT_HEADER, false); 
 curl_setopt($ch, CURLOPT_POST, count($postData)); 
 curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);  
 
 $output=curl_exec($ch); 
 
 curl_close($ch); 
 return $output; 

 
echo curlPost("http://111cn.net",array('name'=>"tank")); 


以前很多人用curl来抓,邮箱的通讯录,不过现在已经不可以了。哈哈。

二,利用jquery form,ajax提交

1,下载jquery.form.js

2,js代码


$('#testform').submit(function() { 
 $(this).ajaxSubmit({ 
 type: 'post', // 提交方式 get/post 
 dataType:"json",//数据类型 
 url: 'your url', // 需要提交的 url 
 success: function(data) { // data 保存提交后返回的数据,一般为 json 数据 
 // 此处可对 data 作相关处理 
 alert('提交成功!'); 
 } 
 $(this).resetForm(); // 提交后重置表单 
 }); 
 return false; // 阻止表单自动提交事件 
}); 

3,php代码
 
header("Access-Control-Allow-Origin:*"); //跨域权限设置,允许所有 
 
header("Access-Control-Allow-Origin:http://www.111cn.net"); //只允许111cn.net跨域提交数据 

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