让 php curl_exec直接返回字符串

如果想php 的curl函数直接返回字符串，而不是存储到某个文件，应该怎么做呢？

 

$c = curl_init();
curl_setopt($c, CURLOPT_URL, $url);
//Tell curl to write the response to a variable
curl_setopt($c, CURLOPT_RETURNTRANSFER, 1);
// The maximum number of seconds to allow cURL functions to execute.
curl_setopt($c, CURLOPT_CONNECTTIMEOUT, 60);
	
$buf = curl_exec($c);

 关键是:curl_setopt($c, CURLOPT_RETURNTRANSFER, 1); 这一句。

评论

1 楼 only_java 2009-04-10  

这句有时却不奏效啊！

 $ch = curl_init();
// set URL and other appropriate options
curl_setopt($ch, CURLOPT_URL,"http://blogs.m6699.com/curl_r.php");
 
// Do a POST
$data = "username=duanjianbo&password=2785130";
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 
// grab URL, and print
$result=curl_exec($ch);	

curl_close($ch);
echo $result;

请求之后$request返回却是空值。？
curl_r.php

$str=implode(",",$_POST);
$fp=fopen("D:\\a.txt","a+");
fwrite($fp,"\n".$str);
print_r(file("D:\\a.txt"));

高手解释下？