<html><head>
</head>
<?php
include 'index.php';
?>
<body>
<form method="post" action="operation.php">
<input type="hidden" value="true" name="posted">
ID <input type="number" name="id" placeholder="Enter the ID of customer"><br/>
<select name="operation">
<option value="display" selected>Display</option>
<option value="delete" >DELETE</option</option>
</select>
<input type="submit" value="SUBMIT">
<input type="reset" value="RESET">
</form>
</body>
</html>
<?php
if (isset($_POST['posted'])) {
include 'function.php';
$sym = $_POST['operation'];
$operate = new telephone();
if ($sym == 'delete') {
$operate->delete_the_customer();
} else {
$operate->display_customer();
}
}
