app/catalogo.php

<?php include('inc/header.php');?>
<form action="compras.php" method="GET">
  <div class="col-3">
    <label for="miArticulo" class="form-label">Articulo: </label>
    <input name="articulo" type="text" class="form-control" id="miArticulo" aria-describedby="emailHelp">
  </div>
  <div class="col-3">
    <label for="miCantidad" class="form-label">Cantidad: </label>
    <input name="cantidad" type="number" class="form-control" id="miCantidad">
  </div>
  <div class="col-3">
    <label class="form-label" for="miPrecio">Precio: </label>
    <input name="precio"type="number" class="form-control" id="miPrecio">
  </div>
  <div class="col-3">
    <label class="form-label" for="miColor">Color: </label>
    <input name="color"type="color" class="form-control" id="miColor">
  </div>
  <button type="submit" class="btn btn-primary">Submit</button>
</form>
<?php include('inc/footer.php');?>