php 数据库删除的实现方法

<?php
    $dbhost = &#39;localhost:3036&#39;;
    $dbuser = &#39;root&#39;;
    $dbpass = &#39;rootpassword&#39;;
    $conn = mysql_connect($dbhost, $dbuser, $dbpass);
    if(! $conn )
    {
      die(&#39;Could not connect: &#39; . mysql_error());
    }
    $sql = &#39;DROP DATABASE test_db&#39;;
    $retval = mysql_query( $sql, $conn );
    if(! $retval )
    {
      die(&#39;Could not delete database db_test: &#39; . mysql_error());
    }
    echo "Database deleted successfully\\n";
    mysql_close($conn);
    ?>

<?php
    $dbhost = &#39;localhost:3036&#39;;
    $dbuser = &#39;root&#39;;
    $dbpass = &#39;rootpassword&#39;;
    $conn = mysql_connect($dbhost, $dbuser, $dbpass);
    if(! $conn )
    {
      die(&#39;Could not connect: &#39; . mysql_error());
    }
    $sql = &#39;DROP TABLE employee&#39;;
    $retval = mysql_query( $sql, $conn );
    if(! $retval )
    {
      die(&#39;Could not delete table employee: &#39; . mysql_error());
    }
    echo "Table deleted successfully\\n";
    mysql_close($conn);
    ?>