Search form not showing any results - php

Question

I am making HTML/CSS search form using PHP and MySQL. IT doesn't display data I want. Not sure what I am doing wrong. I already have PHP working output for other options, it is just this search method is not finding any results. Been stuck for a while and decided to ask.
if (isset($_POST["searchcrews"]))
{
$searchparam = "%{$_POST['search']}%";
$stmt=$conn->prepare("SELECT * FROM crewdata WHERE name LIKE ? AND is_approved =? ORDER BY (vote_up - vote_down) DESC LIMIT ?,?");
$stmt->bind_param('s',$searchparam);
$stmt->execute();
$result=$stmt->get_result();
}
HTML/CSS
<form id="searchcrews">
<div class="box">
<div class="container-4">
<input type="text" id="search" placeholder="Search crew.." />
<button type="submit" class="icon"><i class="fa fa-search"></i></button>
</div>
</div>
</form>

Answer 1

try this hope it helps made some modification in form and button
<form id="searchcrews" method="post">
<div class="box">
<div class="container-4">
<input type="text" id="search" name="search" placeholder="Search crew.." />
<input type="submit" class="icon" name="searchcrews">
</div>
</div>
</form>

Answer 2

Add the 'name' attribute to your input tag and the method to the form tag.
<form id="searchcrews" method="POST">
<div class="box">
<div class="container-4">
<input type="text" id="search" placeholder="Search crew.." />
<button type="submit" class="icon"><i class="fa fa-search"></i></button>
</div>
</div>
</form>