First Create test.php file copy all code and paste in file .Then run on localhost,fisrt time load file thane save data without load save data only one click. YOUR Custom Form :
Email request for lowest price of getName()?>
First Name
Last Name
Email Address
* Required Fields
php
<button type="submit" title="__('Submit') ?>" class="button">__('Submit') ?>
<img class="lazyload" decoding="async" src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" data-orig-src="getSkinUrl("images/opc-ajax-loader.gif")?>">
YOUR script :
<?php
//var dataForm = new VarienForm('lowest-form-validate', true);
//<