R.Titovich,
<!DOCTYPE html>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
<style type="text/css">
</style>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.0.0/css/bootstrap.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.0.0/js/bootstrap.js"></script>
<script>
$(function() {
$('#modal-typeiss').on('shown.bs.modal', function(event) {
let btn = event.relatedTarget;
let id = $(btn).data('id');
$('[name="numid"]', this).val(id);
})
});
</script>
</head>
<body>
<button type="button" class="btn btn-block btn-danger btn-xs" data-toggle="modal" data-target="#modal-typeiss" data-id="'.$itm3['id'].'">Открыта</button>
<!-- Modal -->
<div class="modal fade" id="modal-typeiss" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title" id="exampleModalLabel">Modal title</h5>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body">
<input type="text" name="numid" id="idissues" class="form-control" required>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
<button type="button" class="btn btn-primary">Save changes</button>
</div>
</div>
</div>
</div>
</body>
</html>