PHP implements method to detect whether mysql table exists

<?php
$dsn = &#39;mysql:dbname=test;host=127.0.0.1&#39;;
$user = &#39;root&#39;;
$password = &#39;&#39;;
try {
  $pdo = new PDO($dsn, $user, $password);
} catch (PDOException $e) {
  die("数据库连接失败".$e->getMessage());
}
$table = &#39;cy_news&#39;;
//判断表是否存在
$result = $pdo->query("SHOW TABLES LIKE &#39;". $table."&#39;");
$row = $result->fetchAll();
if(&#39;1&#39; == count($row)){
  echo "Table exists";
} else {
  echo "Table does not exist";
}
?>

<?php
$con = mysql_connect("localhost","root","");
mysql_select_db("php_cms", $con);
$table = &#39;cy_news&#39;;
if(mysql_num_rows(mysql_query("SHOW TABLES LIKE &#39;". $table."&#39;"))==1) {
  echo "Table exists";
} else {
  echo "Table does not exist";
}
?>