Hello I am using bootstrap and this code dont work I dont know whats the different from echo butmy code is like this
<a class="btn btn-danger" href="update_appointment.php<?php echo '?f=' . $txn_id . 'id=' . $f . 'l=' . $l .'m=' . $m .'mn=' . $mn .'ptn=' . $ptn .'sn=' . $sn .'bi=' . $bi .'ui=' . $ui .'a=' . $a .'d=' . $d .'cn=' . $cn; ?>" ><i class="icon-check"></i> Yes</a>
if I enter the button to echo, the button doesnt show? please help me
