php 检测mysql表是否存在

pdo:

<?php
$dsn = 'mysql:dbname=test;host=127.0.0.1';
$user = 'root';
$password = '';
try {
    $pdo = new PDO($dsn, $user, $password);
} catch (PDOException $e) {
    die("数据库连接失败".$e->getMessage());
}

$table = 'cy_news';
//判断表是否存在
$result = $pdo->query("SHOW TABLES LIKE '". $table."'");
$row = $result->fetchAll();

if('1' == count($row)){
    echo "Table exists";
} else {
    echo "Table does not exist";
}
?>

mysql:

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