DataTable Buttons are not coming up in yii2 framework

salman67

Hii im using data table in yii2 framework, i followed this link and added everything in page, all js and css..[https://datatables.net/extensions/buttons/examples/initialisation/export.html].
First i saved everything in a normal php page and run, everything is working fine in this page all buttons are coming up and download excel is also working.

But if i integrate the same page in yii2 framework and run it in this everything is working except file download the BUTTONS are coming up, i re-cheked all the js and css, then also its not working.
I have attached my file please look into this.. Thank u.

This is the script code

<link href="https://cdn.datatables.net/1.10.13/css/jquery.dataTables.min.css" rel="stylesheet">
<link href="https://cdn.datatables.net/buttons/1.2.3/css/buttons.dataTables.min.css" rel="stylesheet">

<script src="https://cdn.datatables.net/1.10.13/js/jquery.dataTables.min.js"></script>
<script src="https://cdn.datatables.net/buttons/1.2.3/js/dataTables.buttons.min.js"></script>
<script src="//cdn.datatables.net/buttons/1.2.3/js/buttons.flash.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/jszip/2.5.0/jszip.min.js"></script>
<script src="//cdn.rawgit.com/bpampuch/pdfmake/0.1.18/build/pdfmake.min.js"></script>
<script src="//cdn.rawgit.com/bpampuch/pdfmake/0.1.18/build/vfs_fonts.js"></script>
<script src="//cdn.datatables.net/buttons/1.2.3/js/buttons.html5.min.js"></script>
<script src="//cdn.datatables.net/buttons/1.2.3/js/buttons.print.min.js"></script>

<script>
    $(document).ready(function() {
$('#example').DataTable( {
    dom: 'Bfrtip',
    buttons: [
        'copy', 'csv', 'excel', 'pdf', 'print'
    ]
} );

} );
</script>

Name	Position	Office	Age	Start date	Salary
Tiger Nixon	System Architect	Edinburgh	61	2011/04/25	$320,800
Garrett Winters	Accountant	Tokyo	63	2011/07/25	$170,750