PHP的curl实现get和post

类似于dreamhost这类主机服务商，是显示fopen的使用的。使用php的curl可以实现支持FTP、FTPS、HTTP HTPPS SCP SFTP TFTP TELNET DICT FILE和LDAP。curl 支持SSL证书、HTTP POST、HTTP PUT 、FTP 上传，kerberos、基于HTT格式的上传、代理、cookie、用户＋口令证明、文件传送恢复、http代理通道就最常用的来说，是基于http的get和post方法。

代码实现：

1、http的get实现

$ch = curl_init("http://www.devdao.com/") ;
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true) ;
curl_setopt($ch, CURLOPT_BINARYTRANSFER, true) ;
$output = curl_exec($ch) ;
$fh = fopen("out.html", 'w') ;
fwrite($fh, $output) ;
fclose($fh) ;

2、http的post实现

//extract data from the post
extract($_POST) ;
//set POST variables
$url = 'http://www.webjx.com/get-post.php' ;
$fields = array(
                        'lname'=>urlencode($last_name) ,
                        'fname'=>urlencode($first_name) ,
                        'title'=>urlencode($title) ,
                        'company'=>urlencode($institution) ,
                        'age'=>urlencode($age) ,
                        'email'=>urlencode($email) ,
                        'phone'=>urlencode($phone)
                );
//url-ify the data for the POST
foreach($fields as $key=>$value) { $fields_string .= $key.'='.$value.'&' ; }
rtrim($fields_string ,'&') ;
//open connection
$ch = curl_init() ;
//set the url, number of POST vars, POST data
curl_setopt($ch, CURLOPT_URL,$url) ;
curl_setopt($ch, CURLOPT_POST,count($fields)) ;
curl_setopt($ch, CURLOPT_POSTFIELDS,$fields_string) ;
//execute post
$result = curl_exec($ch) ;
//close connection
curl_close($ch) ;