Concatenate string with space mysql php

Question

$menunaam = "Lazy Dog" 
$resultmenus = mysqli_query($dbc,"SELECT menunaam FROM prijslijst WHERE menunaam='$menunaam'");
$row = mysqli_fetch_array($resultmenus,MYSQLI_ASSOC);
echo "<input type=\"hidden\" class=\"mnu\" name=\"mnnm\" value=".htmlspecialchars($row["menunaam"]).">";

This outputs

<input class="mnu" type="hidden" Dog="" value="Lazy" name="mnnm">

Then when i change it like this it works fine (with extra single quotation marks added):

echo "<input type=\"hidden\" class=\"mnu\" name=\"mnnm\" value='".htmlspecialchars($row["menunaam"])."'>";

Then i get a new problem. When i use a variable with the content: $menunaam= "lazy's"

<input class="mnu" type="hidden" s'="" value="lazy" name="mnnm">

Answer 1

Whats wrong with:

echo '<input type="hidden" class="mnu" name="mnnm" value="'.htmlspecialchars($row["menunaam"]).'">';

or better yet:

printf('<input type="hidden" class="mnu" name="mnnm" value="%s">', htmlspecialchars($row["menunaam"]));