我必须在按钮元素的data-url属性中添加一个url

Question

I have to add a url into a data-url attribute in a button element. But from the url image, I have to add id and book name which are php variables. How can I add this two php variables in my data-url attribute?

This is the URL : http://localhost/book%20store/detail.php?id=53&cat=Game Of Thrones This is my code (I've tried this but this is not working):

$book_id = $row['b_id'];  
$book_name = $row['b_nm'];    
echo'<table>  
     <tr>  
       <button class="sharer btn btn-lg"   
data-url="http://localhost/book store/detail.php?id={$book_id}&cat={$book_name}" >
       Share to Facebook </button>
     </tr>
      </table>';

from the url : $row['b_id'] = 53
And $row['b_nm']=Game Of Thrones

Answer 1

Assuming your vars aren't empty then the below should work, your orig wont work as it has single quotes and the vars inside. So use double quotes or the solution in my post below, either should work

    echo '<table>  
     <tr>  
       <button class="sharer btn btn-lg"   
data-url="http://localhost/book store/detail.php?id=' . $book_id . '&cat=' . $book_name . '" >
       Share to Facebook </button>
     </tr>
      </table>';