php - Using the JQuery .Ajax() method? -

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i creating site user fills out form, has data sent php script , display result in div , have been struggling complete while now. below code have created:

the button activates function:

function callfunc() {     var testvar = "example 01";     $.ajax(     {         url: "public/includes/usercreate.php",         type: "post",              data: testvar,           success: function(html)          {                            $('#web_content').html(html);         }           });      };

the php file this:

<?php     $test = $_post['testvar'];     echo $test; ?>

for reason though doesnt work. mean doesnt inject value of echo command div, if take out variable data php , have echo simple element, work , injects echo value div, below code run:

<?php     $test = $_post['testvar'];     echo "<h3>user ???? created.</h3>"; ?>

i think because not sending data correctly, tell me correct way send data php script , also, how send more 1 variable?

you need data: { testvar: "example 01"} key value pair. generate query string parameter testvar=example%2001


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