Chiyembekezo

I have a search page that is working but is generating an error despite working. The error is Notice: Undefined index: var1 in C:\Program Files\EasyPHP-DevServer-13.1VC9\data\localweb\my portable files\air\search.php on line 58 Invalid form value: The code that i have is here below. The first line in the code below is the line 58 $var1 = str_replace(array('%','_'),'',$_POST['var1']); if (!$var1) { exit('Invalid form value: '.$var1); } $query = "SELECT * FROM holder WHERE Surname LIKE :search OR FirstName LIKE :search OR Variable Like :search OR Number Like :search GROUP BY holder.EmployeeID"; $statement = $db->prepare($query); $statement->bindValue(':search', '%' . $var1 . '%', PDO::PARAM_INT); echo "<table border='1' cellpadding='10'>"; echo "<tr> <th>Surname</th> <th>First Name</th> <th>Rank</th> <th>Number</th></tr>"; $statement->execute(); /* Fetch all of the remaining rows in the result set */ print("Here are the results of your search Sir:\n"); $statement->setFetchMode(PDO::FETCH_ASSOC); // Set the fetch mode. while ($row = $statement->fetch()) { $Surname = $row['Surname']; $FirstName = $row['FirstName']; $Variable = $row['Variable']; $Variable = $row['Number']; echo "<tr>"; echo '<td>' . $row['Surname'] . '</td>'; echo '<td>' . $row['FirstName'] . '</td>'; echo '<td>' . $row['Variable'] . '</td>'; echo '<td>' . $row['Number'] . '</td>'; echo '<td><a href="details.php?EmployeeID=' . $row['EmployeeID'] . '">Details</a></td>';