<?php
$uri = "http://www.a.com/test.php";//这里换成你服务器的地址
// 参数数组
$data = array (
  'name' => 'tanteng'
// 'password' => 'password'
);

$ch = curl_init ();
// print_r($ch);
curl_setopt ( $ch, CURLOPT_URL, $uri );
curl_setopt ( $ch, CURLOPT_POST, 1 );
curl_setopt ( $ch, CURLOPT_HEADER, 0 );
curl_setopt ( $ch, CURLOPT_RETURNTRANSFER, 1 );
curl_setopt ( $ch, CURLOPT_POSTFIELDS, $data );
$return = curl_exec ( $ch );
curl_close ( $ch );

print_r($return);

<?php
if(isset($_POST['name'])){
 if(!empty($_POST['name'])){
  echo '您好，',$_POST['name'].'！';
 }
}