<?php require_once("includes/config.php"); // code admin email availablity if(!empty($_POST["emailid"])) { $email= $_POST["emailid"]; if (filter_var($email, FILTER_VALIDATE_EMAIL)===false) { echo "error : You did not enter a valid email."; } else { $sql ="SELECT EmailId FROM tblusers WHERE EmailId=:email"; $query= $dbh -> prepare($sql); $query-> bindParam(':email', $email, PDO::PARAM_STR); $query-> execute(); $results = $query -> fetchAll(PDO::FETCH_OBJ); $cnt=1; if($query -> rowCount() > 0) { echo "<span style='color:red'> Email already exists .</span>"; echo "<script>$('#submit').prop('disabled',true);</script>"; } else{ echo "<span style='color:green'> Email available for Registration .</span>"; echo "<script>$('#submit').prop('disabled',false);</script>"; } } } ?>