如上面的注释中所述，您应该分而治之，以使您的生活更轻松(尤其是当您在该大型函数中使用代码时编写代码)。确实很容易做到：

function file_put($number, $data) { $path = sprintf("C:/temp/wamp/www/file%d.txt", $number); file_put_contents($path, $data); } 例如，这只是替换许多重复的行，您只需要在其中放入一些(编号)文件即可。

但是您也可以使用更复杂的内容(例如数据库操作)来执行此操作。您可能希望将错误处理移到您的视线之外，并在需要时小心地连接到数据库，并以更灵活的方式来获取数据。可以通过将(已弃用的)mysql_*函数移至其自己的一两个类中来完成，以使它不被看到。这将使它的使用更加容易(我首先显示)：

// Create your database object to use it later on: $config = array( 'server' => 'localhost', 'name' => 'root', 'password' => '', 'db' => 'test', ); $db = new MySql($config); 我称它为数据库类，MySql因为它代表了mysql连接，并且可以与旧的mysql扩展一起使用。您只需要将该数据库对象传递给问题中的函数即可。结合file_put功能，它看起来像这样：

function checkin(MySql $DB, $TechID, $ClientID, $SiteID) { $query = sprintf("SELECT Type FROM Log WHERE TechID = '%d' ORDER BY LogTime DESC LIMIT 1", $TechID); file_put(5, $query);

$result1 = $DB->query("SELECT COUNT(*) FROM Log");

$result2 = $DB->query($query);

foreach ($result1 as $row1) {

list($count) = $row1;

$data = "ClientID:$ClientID TechID:$TechID SiteID:$SiteID Count:$count"

file_put(3, $data);

foreach ($result2 as $row2) {

file_put(4, $data);

}

}

} 该checkin函数仍然接近大型(已经有12行代码)，但是比您的第一个版本短得多，因为它委派了编写文件和访问数据库的工作。我希望这个示范有用。以下是完整的代码示例：

/** * MySql Exception */ class MySqlException extends RuntimeException { }

/** * MySql Database Class */ class MySql { private $server; private $name; private $password; private $db; private $connection;

public function __construct(array $config)

{

$this->server = $config['server'];

$this->name = $config['name'];

$this->password = $config['password'];

$this->db = $config['db'];

}

private function connect($server, $name, $password)

{

$this->connection = mysql_connect($server, $name, $password);

if (!$this->connection) {

$this->error("Unable to connect to '%s' as user '%s'", $server, $name);

}

}

private function select($db)

{

if (!mysql_select_db($db, $this->connection)) {

$this->error("Unable to select database '%s'", $db);

}

}

private function close()

{

$this->connection && mysql_close($this->connection);

}

private function connectSelect()

{

$this->connect($this->server, $this->name, $this->password);

$this->select($this->db);

}

/**

* @param $query

* @return MySqlResult

*/

public function query($query)

{

$this->connection || $this->connectSelect();

$result = mysql_query($query, $this->connection);

if (!$result) {

$this->error("Unable to execute query '%s'", $query);

}

return new MySqlResult($result);

}

/**

* @param string $format

* @param ...

* @throws MySqlException

*/

private function error($format)

{

$args = func_get_args();

array_shift($args);

$format .= ': %s';

$args[] = $this->connection ? mysql_error($this->connection) : mysql_error();

throw new MySqlException(vsprintf($format, $args));

}

public function __destruct()

{

$this->close();

}

}

/** * MySql Result Set - Array Based */ class MySqlResult implements Iterator, Countable { private $result; private $index = 0; private $current;

public function __construct($result)

{

$this->result = $result;

}

public function fetch($result_type = MYSQL_BOTH)

{

$this->current = mysql_fetch_array($this->result, $result_type);

return $this->current;

}

/**

* Return the current element

* @link http://php.net/manual/en/iterator.current.php

* @return array

*/

public function current()

{

return $this->current;

}

public function next()

{

$this->current && $this->fetch();

}

/**

* Return the key of the current element

* @link http://php.net/manual/en/iterator.key.php

* @return mixed scalar on success, or null on failure.

*/

public function key()

{

return $this->current ? $this->index : null;

}

/**

* Checks if current position is valid

* @link http://php.net/manual/en/iterator.valid.php

* @return boolean The return value will be casted to boolean and then evaluated.

* Returns true on success or false on failure.

*/

public function valid()

{

return (bool)$this->current;

}来源：stack overflow