下面的SQL语句几乎是等价的:

SELECT COLUMN_NAME
  FROM INFORMATION_SCHEMA.COLUMNS
 WHERE table_name = 'tbl_name'
  [AND table_schema = 'db_name']
  [AND column_name LIKE 'wild']

SHOW COLUMNS
FROM tbl_name
[FROM db_name]
[LIKE 'wild']

参考:INFORMATION_SCHEMA列

我做了一个PDO函数，它返回一个简单数组中的所有列名。

public function getColumnNames($table){
    $sql = "SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE table_name = :table";
    try {
        $core = Core::getInstance();
        $stmt = $core->dbh->prepare($sql);
        $stmt->bindValue(':table', $table, PDO::PARAM_STR);
        $stmt->execute();
        $output = array();
        while($row = $stmt->fetch(PDO::FETCH_ASSOC)){
            $output[] = $row['COLUMN_NAME'];                
        }
        return $output; 
    }

    catch(PDOException $pe) {
        trigger_error('Could not connect to MySQL database. ' . $pe->getMessage() , E_USER_ERROR);
    }
}

输出将是一个数组:

Array (
[0] => id
[1] => name
[2] => email
[3] => shoe_size
[4] => likes
... )

对不起死灵，但我喜欢我的功能;)

附注:我没有包括类核心，但你可以使用自己的类。科学博士

你可能还想检查mysql_fetch_array()，如下所示:

$rs = mysql_query($sql);
while ($row = mysql_fetch_array($rs)) {
//$row[0] = 'First Field';
//$row['first_field'] = 'First Field';
}

mysql_list_fields函数可能会引起您的兴趣;但是，正如手册所述:

该函数不建议使用。它是 最好使用mysql_query()来 而不是使用SQL SHOW COLUMNS FROM table [LIKE 'name']语句。

你可以使用DESCRIBE:

DESCRIBE my_table;

或者在更新的版本中，你可以使用INFORMATION_SCHEMA:

SELECT COLUMN_NAME
  FROM INFORMATION_SCHEMA.COLUMNS
  WHERE TABLE_SCHEMA = 'my_database' AND TABLE_NAME = 'my_table';

或者你可以使用SHOW COLUMNS:

SHOW COLUMNS FROM my_table;

或者在一行中获取带逗号的列名:

SELECT group_concat(COLUMN_NAME)
  FROM INFORMATION_SCHEMA.COLUMNS
  WHERE TABLE_SCHEMA = 'my_database' AND TABLE_NAME = 'my_table';

这个怎么样:

SELECT @cCommand := GROUP_CONCAT( COLUMN_NAME ORDER BY column_name SEPARATOR ',\n')
FROM INFORMATION_SCHEMA.COLUMNS 
WHERE TABLE_SCHEMA = 'my_database' AND TABLE_NAME = 'my_table';

SET @cCommand = CONCAT( 'SELECT ', @cCommand, ' from my_database.my_table;');
PREPARE xCommand from @cCommand;
EXECUTE xCommand;