Embedding a view from a page with php
views_embed_view($view_name, 'default');
// does not work because you need to print/echo the result. eg.
print views_embed_view($view_name, 'default');

views_get_view_result($view_name, 'block');
//does not work because the function returns an array (and you aren't even trying to print the array anyway)

echo views_embed_view('woensdag', $display_id = 'block')
// Trying to set a variable in a function call? It probably would have worked like this:
echo views_embed_view('woensdag', 'block')