如何在PHP中发送POST数据时加载页面

Question

maybe this is sound's stupid but i want to make a page that can give some result when it is being called with a POST data..

lets say i have a.php with post data validation which can receive post data from outer server.

 if ((isset($_POST['authKey'])) && (isset($_POST['cmd'])) && ($_POST['authKey']==$this->key) && ($_POST['cmd']=='hello'))
        {
            if (in_array($_SERVER['HTTP_REFERER'], $this->trusted))
               echo 'hello world';
        }

how to make b.php can get hello world by sending POST data. Thank you.. Sorry my English is so bad.

Answer 1

You can have an HTML FORM on b.php

<form action="b.pbp" method="post">
  <input name="authKey">
  <input name="cmd">
  <button>Make request</button>
</form>

You can make an ajax request from b.php

var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
  if (xhttp.readyState == 4 && xhttp.status == 200) {
    alert(xhttp.responseText);
  }
};
xhttp.open("POST", "b.php", true);
xhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
xhttp.send('authKey=x&cmd=y');

You can make a cUrl request on the server side from b.php http://php.net/manual/en/book.curl.php