Untitled

<?php
ini_set("display_errors", 1);

$host = "localhost";
$db = "study";
$user = "root";
$pass = "";
$charset = "utf8";
$dsn = "mysql:host=$host;dbname=$db;charset=$charset";
$opt = [
	PDO::ATTR_ERRMODE 				=> PDO::ERRMODE_EXCEPTION,
	PDO::ATTR_DEFAULT_FETCH_MODE	=> PDO::FETCH_ASSOC,
];

$pdo = new PDO($dsn, $user, $pass, $opt);
$myQuery = 'SELECT * FROM workers';

function displayTable($myQuery, $pdo) {
	$stmt = $pdo->query($myQuery);
	$colCount = $pdo->query($myQuery)->columnCount();
	$table = "<table><tr>";
	for ($i=0;$i<$colCount;$i++) {
		$metaArray = $pdo->query($myQuery)->getColumnMeta($i);
		$table .= "<td>".$metaArray["name"]."</td>";
	}
	$table .= "<td>edit</td>";
	$table .= "<td>delete</td></tr>";
	$table .="<tr>";
	while ($row = $stmt->fetch())
	{
	    $table .= "<tr><td>";
	    $table .= $row["id"];
	    $table .= "</td><td>";
	    $table .= $row["name"];
	    $table .= "</td><td>";
	    $table .= $row["age"];
	    $table .= "</td><td>";
	    $table .= $row["salary"];
	    $table .= "</td><td><a href="."edit.php?id=".$row["id"].">Редактировать</a></td>";
	    $table .= "<td><a href="."delete.php".">Удалить</a></td></tr>";
	}
	return $table;
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Document</title>
	<style type="text/css">
		td {
			text-align: center;
			border: 1px solid black;
			padding: 10px 20px;
		}
		table {
			border: 1px solid black;
			border-collapse: collapse;

		}
		body {
			font-size: 16px;
		}
	</style>
</head>
<body>
<?php
	echo displayTable($myQuery,$pdo);
?>
</body>
</html>