如何自动发布提交？

Question

I want to post automatically when the input value is written. Please can you help? The form is as follows:

<form method="post" action="searchresults.php">
     <input type="text" name="searchresult">
     <input type="submit">
</form>

Answer 1

This should be done with jQuery.

$('#toPost').keyup(function(){
  $('#sub').click();
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form method="post" action="searchresults.php">

<input type="text" name="searchresult" id="toPost">
<input type="submit" id="sub">
    
</form>

</div>