<form action="searchscript.php" method="post"> 
Certification Number: <input type="text" name="serial" value="" required> <br> 
Certification Name: <input type="text" name="cert" value"" required> <br>
Certificate Holders Name: <input type="text name="name" value"" required> <br>

<input type= "submit" value= "search">
</form>