Zend framework to achieve support sql server operation

This article describes the implementation of the zend framework to support the operation of sql server method. To share with you for your reference, as follows:

1. Modify the connect method in Zend / Db / Adapter / Pdo / Abstract.php

protected function _connect()
{
  // if we already have a PDO object, no need to re-connect.
  if ($this->_connection) {
    return;
  }
  // get the dsn first, because some adapters alter the $_pdoType
  $dsn = $this->_dsn();
  // check for PDO extension
  if (!extension_loaded('pdo')) {
    /**
     * [url=home.php?mod=space&uid=86763]@see[/url] Zend_Db_Adapter_Exception
     */
    require_once 'Zend/Db/Adapter/Exception.php';
    throw new Zend_Db_Adapter_Exception('The PDO extension is required for this adapter but the extension is not loaded');
  }
  // check the PDO driver is available
  if (!in_array($this->_pdoType, PDO::getAvailableDrivers())) {
    /**
     * @see Zend_Db_Adapter_Exception
     */
    require_once 'Zend/Db/Adapter/Exception.php';
    throw new Zend_Db_Adapter_Exception('The ' . $this->_pdoType . ' driver is not currently installed');
  }
  // create PDO connection
  $q = $this->_profiler->queryStart('connect', Zend_Db_Profiler::CONNECT);
  // add the persistence flag if we find it in our config array
  if (isset($this->_config['persistent']) && ($this->_config['persistent'] == true)) {
    $this->_config['driver_options'][PDO::ATTR_PERSISTENT] = true;
  }
  try {
    //print_r($this->_config);exit;
    if($this->_config['pdoType']=='sqlsrv'){
      $this->_connection = new PDO( "sqlsrv:Server=".$this->_config['host'].";Database = ".$this->_config['dbname'], $this->_config['username'], $this->_config['password']);
      $this->_connection->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION );
      $this->_connection->setAttribute( PDO::SQLSRV_ATTR_ENCODING, PDO::SQLSRV_ENCODING_UTF8 );
      $this->_profiler->queryEnd($q);
    }elseif ($this->_config['pdoType']=='dblib') {
      $this->_connection = new PDO(
        $dsn,
        $this->_config['username'],
        $this->_config['password'],
        $this->_config['driver_options']
      );
      $this->_profiler->queryEnd($q);
    }
    // set the PDO connection to perform case-folding on array keys, or not
    $this->_connection->setAttribute(PDO::ATTR_CASE, $this->_caseFolding);
    // always use exceptions.
    $this->_connection->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
  } catch (PDOException $e) {
    /**
     * @see Zend_Db_Adapter_Exception
     */
    require_once 'Zend/Db/Adapter/Exception.php';
    throw new Zend_Db_Adapter_Exception($e->getMessage());
  }
}

Here for linux and windows provide two connections.

2.mssql.php in the protected $ _pdoType = ‘sqlsrv’;

protected function _dsn()
{
    // baseline of DSN parts
    $dsn = $this->_config;
    // don't pass the username and password in the DSN
    unset($dsn['username']);
    unset($dsn['password']);
    unset($dsn['driver_options']);
    if (isset($dsn['port'])) {
      $seperator = ':';
      if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
        $seperator = ',';
      }
      $dsn['host'] .= $seperator . $dsn['port'];
      unset($dsn['port']);
    }
    // this driver supports multiple DSN prefixes
    // @see http://www.php.net/manual/en/ref.pdo-dblib.connection.php
    //print_r($dsn);exit;
    if (isset($dsn['pdoType'])) {
      switch (strtolower($dsn['pdoType'])) {
        case 'freetds':
        case 'sybase':
          $this->_pdoType = 'sybase';
          break;
        case 'mssql':
          $this->_pdoType = 'mssql';
          break;
        case 'sqlsrv':
          $this->_pdoType = 'sqlsrv';
          break;
        case 'dblib':
        default:
          $this->_pdoType = 'dblib';
          break;
      }
      unset($dsn['pdoType']);
    }
    // use all remaining parts in the DSN
    foreach ($dsn as $key => $val) {
      $dsn[$key] = "$key=$val";
    }
    $dsn = $this->_pdoType . ':' . implode(';', $dsn);
   // print_r($dsn);exit;
    return $dsn;
}

ZF web.xml database configuration file into:

<db>
  <adapter>PDO_MSSQL</adapter>
<config>
    <host>localhost</host>
    <username>sa</username>
    <password>123456</password>
    <dbname>testdb </dbname>
    <pdoType>sqlsrv</pdoType>
  </config>
</db>

Encountered during the Chinese garbled

function convert2utf8($string)
{
    $config = $this->getCfg();
    $pdoType = $config->db->config->pdoType;
    if($pdoType == 'dblib'){
      return iconv("gbk","utf-8",$string);
    }elseif($pdoType == 'sqlsrv'){
      return mb_convert_encoding($string,"UTF-8","auto");
    }
}
function convert2gbk($string)
{
    $config = $this->getCfg();
    $pdoType = $config->db->config->pdoType;
    if($pdoType == 'dblib'){
      return iconv("utf-8","gbk",$string);
    }elseif($pdoType == 'sqlsrv'){
      return mb_convert_encoding($string,"GBK","auto");
    }
}
protected function &getCfg() {
    if ($this->cfg_ === null) {
      $registry = Zend_Registry::getInstance();
      $this->cfg_ = $registry->get('web_config');
    }
    return $this->cfg_;
} 

For different types, for different treatment.

if you want to reproduce, please indicate the source:
Zend framework to achieve support sql server operation - CodeDay