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小技巧:取得MYSQL中ENUM(枚举)列的全部可能值

WBOY
Release: 2016-06-13 10:05:50
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这里其实并不需要其它的什么函数来支持,只需要使用MYSQL提供的一些SQL语句就可以了。
这里为了简单起见,以MYSQL的系统表USER为例,取出SELECT_PRIV这一列的所有可能值。
方法:SHOW COLUMNS FROM table_name LIKE enum_column_name
  小写的部分需要根据你的情况改变。
程序:
//By SonyMusic(sonymusic@163.com)
//HomePage(phpcode.yeah.net)
    $connect_hostname="localhost";
    $dbname="mysql";
    $connect_username = "root";
    $connect_pass ="";
    $connect_id = mysql_connect($connect_hostname, $connect_username, $connect_pass);
    mysql_select_db($dbname);
    
    $query="show columns from user like 'select_priv'";
    $result=mysql_db_query($dbname,$query);
    $enum=mysql_result($result,0,"type");
    echo $enum."
";
    $enum_arr=explode("(",$enum);
    $enum=$enum_arr[1];
    $enum_arr=explode(")",$enum);
    $enum=$enum_arr[0];
    $enum_arr=explode(",",$enum);
    for($i=0;$i        echo $enum_arr[$i]."
";
    }
?>

source:php.cn
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