Question

HTML :

<a href="/profile.php?user={$username}&action_request="friend_request">
Friend request
</a>

PHP :

if(isset($_GET['user']) && isset($_GET['action_request'])) {
     if(strcmp($_GET['action_request'],"friend_request") == 0) {
        insert_friendship($id_user1,$id_user2);
   }
}

and the function for insert is :

  //sql string
   if(sql_insert()) {
      return "Friendship request sent!";
      } else {
       return "Friendship request failed!"; }

P.S I am using smarty engine for templating.

How do i take the url from <a> tag with ajax and send it to the php page to call the function then ajax to wait for the respond and send it to the html.

Answer 1

include jquery in your page.

<script type="text/javascript">
    document.getElementById("ajax_a").addEventListner("click", function(e){
        e.preventDefault();
        var uri = document.getElementById("ajax_a").getAttribute("href");
        $.ajax({
            url: uri,
            type: "GET",
            data: {},
            dataType: "html",
            success: function(data){
                // data is the value returned by server.
            },
            error : function(){
                alert("some error occured");
                // data is the value returned by server.
            }
        });
    });
</script>

<a id="ajax_a" href="/profile.php?user={$username}&action_request="friend_request">
Friend request
</a>