php - Why the remote validation doesn't work? -

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i follow demo http://jquery.bassistance.de/validate/demo/marketo/ , met problems achieve same remote validation function.

here html used.

<!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "http://www.w3.org/tr/2000/rec-xhtml1-200000126/dtd/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <title>subscription signup | marketo</title> <!--http://jquery.bassistance.de/validate/demo/marketo/--> <link rel="stylesheet" type="text/css" media="screen" href="css/stylesheet.css" /> <script type="text/javascript" src="js/jquery/jquery-1.4.2.js"   ></script> <script type="text/javascript" src="js/jquery/jquery.validate.js"></script> <script type="text/javascript">  $(document).ready(function(){  $("#profileform").validate({   invalidhandler: function(e, validator) {    var errors = validator.numberofinvalids();    if (errors) {     var message = errors == 1      ? 'you missed 1 field. has been highlighted below'      : 'you missed ' + errors + ' fields.  have been highlighted below';     $("div.error span").html(message);     $("div.error").show();    } else {     $("div.error").hide();    }   },   onkeyup: false,   submithandler: function() {    $("div.error").hide();    alert("submit! use link below go other step");   },   messages: {    password2: {     required: " ",     equalto: "please enter same password above"     },    email: {     required: " ",     email: "please enter valid email address, example: you@yourdomain.com",     remote: jquery.validator.format("{0} taken, please enter different address.")     }   },   debug:true  });  });  </script> </head> <body> <div>  <form id="profileform" action="" method="post" >   <div class="error" style="display:none;">     <img src="images/warning.gif" alt="warning!" width="24" height="24" style="float:left; margin: -5px 10px 0px 0px; " />     <span></span>.<br clear="all"/>   </div>   <table cellpadding="0" cellspacing="0" border="0">    <tr>     <td colspan="2"><h2 style="border-bottom: 1px solid #cccccc;">login information</h2></td>    </tr>    <tr>     <td class="label"><label for="email">email:</label></td>     <td class="field"><input id="email" class="required email" remote="emails.php" maxlength="40" name="email" size="20" type="text" tabindex="11" value="" /></td>    </tr>    <tr>     <td class="label"><label for="password1">password:</label></td>     <td class="field"><input id="password1" class="required password" maxlength="40" name="password1" size="20" type="password" tabindex="12" value="" /></td>    </tr>    <tr>     <td class="label"><label for="password2">retype password:</label></td>     <td class="field"><input id="password2" class="required" equalto="#password1" maxlength="40" name="password2"  size="20" type="password" tabindex="13" value="" />      <div class="formerror"></div></td>    </tr>    <tr>     <td></td>     <td><div class="buttonsubmit">       <input class="formbutton" type="submit" value="next" style="width: 140px" tabindex="14" />      </div></td>    </tr>   </table>  </form> </div> </body> </html>

here php script:

<?php  $request = trim(strtolower($_request['value'])); $emails = array('glen@marketo.com', 'george@bush.gov', 'me@god.com', 'aboutface@cooper.com', 'steam@valve.com', 'bill@gates.com'); $valid = 'true'; foreach($emails $email) {  if( strtolower($email) == $request )   $valid = 'false'; } echo $valid; ?>

when enter glen@marketo.com , click tab, found following error messages through filebug:

param: email glen@marketo.com response:
notice: undefined variable: request in c:\wamp\www\ajax_login_validation\emails.php on line 4

notice: undefined index: value in c:\wamp\www\ajax_login_validation\emails.php on line 5
true

it seems complains $_request['value']

how can fix problem.

many thanks

it should $_request['email'] instead of $_request['value']


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