Textbox onchange event using print

[Scope72]

Need help please.  Does anyone see a problem with calling the onchange event in here.  I have tried this and can't get it to work at all.

 

 

function dothis(){

 

<?php

 

      print '<input type="text" size="5" onchange="nowdothis()" value="TextBox">';

?>

 

function nowdothis()

{

    $fp = fopen('error.txt','w');

    fwrite($fp,"This");

    fclose($fp);

 

 

}

 

 

Thank you for any help.

[MasterACE14]

You can't call PHP like that. Google 'AJAX'