PHP连接MYSQL数据库通用类

php

include "mysql.php";

$db = new Dirver(); 

$db->DBLink($dbhost='localhost', $dbuser='root', $password='password', $dbname='name', $pconnect=0);

立即学习“PHP免费学习笔记（深入）”；

?>

PHP连接MYSQL数据库类 

mysql.php

Class Dirver{

  //连接数据库

  //link database

  function DBLink($dbhost='localhost', $dbuser='root', $password='', $dbname='', $pconnect=0){

    $this->LinkID[$this->Line] = ($pconnect == 1)? @mysql_pconnect($dbhost, $dbuser, $password) : @mysql_connect($dbhost, $dbuser, $password) or die("Connect to MySQL ($dbhost,$dbuser) failed");

    //选择连接数据库

    //choose to link database

    @mysql_select_db($dbname, $this->LinkID[$this->Line]) or die('Cannot use database '.$dbname);

    return $this->LinkID[$this->Line];

  }

  //查询语句

  //view qurry

  function query($query,$limit='') {

    $this -> nums ++;

    //检测如果有限制数据集则处理

    //test if there is finite data,then function

    if($limit>0){

      $query = $query.' LIMIT '.$limit;

    }

    $this-> Lists[$this->Line][] = $query;

    $querys = mysql_query($query,$this->LinkID[$this->Line]);

    if(!$querys){

      $this->DB_Error($query);

    }

    return $querys;

  }

  //返回数组资料

  //back to array info

  function fetch_array($query) {

    return @mysql_fetch_array($query, MYSQL_ASSOC);

  }

  //返回数组资料

  //back to array info

  function result($query) {

    return @mysql_result($query,$this->LinkID[$this->Line]);

  }

  //返回数组资料行

  //back to row info

  function rows($query) {

    return $this->fetch_array($this->query($query));

  }

  //返回数组行

  //back to numrows

  function nums($query) {

    return $this->num_rows($this->query($query));

  }

  //取得返回列的数目

  //fetch the numbers backing out

  function num_rows($query){

    return @mysql_num_rows($query);

  }

  //返回单列的各字段

  //return to every field of single row 

  function fetch_row($query) {

    return @mysql_fetch_row($query);

  }

  //返回最后一次使用 INSERT 指令的 ID

  //return to inserted ID used last time

  function insert_id(){

    return @mysql_insert_id($this->LinkID[$this->Line]);

  }

  //关闭当前数据库连接

  //close current database link

  function close(){

    return @mysql_close($this->LinkID[$this->Line]);

  }

  //检测mysql版本

  //test mysql version

  function version(){

    $query = @mysql_query("SELECT VERSION()",$this->LinkID[$this->Line]);

    return  @mysql_result($query, 0);

  }

  //返回友情提示信息 更多http://www.52mvc.com

  //return to kindly note

  function DB_Error_t($query=''){

  }

  function DB_Error($query=''){

    global $PHP_SELF;

      //出错语句提示

      //error sentence 

      $errors = preg_replace("/'(.+?)'/is"," '//1' ",mysql_error());

        $charset ='';

        //提示语言

        //language noted

        $lang = Array('This SQL Error Info!', 'Error Script:', 'Present time:',

              'Http Host:', 'Server Name:', 'Server Software:',

              'Host IP Address:', 'Remote User Agent:', 'Current File:', 

              'Current Line:', 'Line.', 'The Error number:', 

              'The specific Error was:', 'SQL Query :', 'Not discover whateverly SQL Sentence ！');

        //时间处理

        //time

        $nowdate = date('Y-m-d H:i A');

        $errors = preg_replace("/'(.+?)'/is","'//1'",mysql_error());

      //检测是否有语句

      //test if there is any sentence.

      if($query==''){

        $query = $lang[14];

      }

      echo "

      ";

    exit;

  }

}

?>

PHP连接MYSQL数据库类

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include "mysql.php";

$db = new Dirver(); 

$db->DBLink($dbhost='localhost', $dbuser='root', $password='password', $dbname='name', $pconnect=0);

立即学习“PHP免费学习笔记（深入）”；

?>

PHP连接MYSQL数据库类 

mysql.php

Class Dirver{

  //连接数据库

  //link database

  function DBLink($dbhost='localhost', $dbuser='root', $password='', $dbname='', $pconnect=0){

    $this->LinkID[$this->Line] = ($pconnect == 1)? @mysql_pconnect($dbhost, $dbuser, $password) : @mysql_connect($dbhost, $dbuser, $password) or die("Connect to MySQL ($dbhost,$dbuser) failed");

    //选择连接数据库

    //choose to link database

    @mysql_select_db($dbname, $this->LinkID[$this->Line]) or die('Cannot use database '.$dbname);

    return $this->LinkID[$this->Line];

  }

  //查询语句

  //view qurry

  function query($query,$limit='') {

    $this -> nums ++;

    //检测如果有限制数据集则处理

    //test if there is finite data,then function

    if($limit>0){

      $query = $query.' LIMIT '.$limit;

    }

    $this-> Lists[$this->Line][] = $query;

    $querys = mysql_query($query,$this->LinkID[$this->Line]);

    if(!$querys){

      $this->DB_Error($query);

    }

    return $querys;

  }

  //返回数组资料

  //back to array info

  function fetch_array($query) {

    return @mysql_fetch_array($query, MYSQL_ASSOC);

  }

  //返回数组资料

  //back to array info

  function result($query) {

    return @mysql_result($query,$this->LinkID[$this->Line]);

  }

  //返回数组资料行

  //back to row info

  function rows($query) {

    return $this->fetch_array($this->query($query));

  }

  //返回数组行

  //back to numrows

  function nums($query) {

    return $this->num_rows($this->query($query));

  }

  //取得返回列的数目

  //fetch the numbers backing out

  function num_rows($query){

    return @mysql_num_rows($query);

  }

  //返回单列的各字段

  //return to every field of single row 

  function fetch_row($query) {

    return @mysql_fetch_row($query);

  }

  //返回最后一次使用 INSERT 指令的 ID

  //return to inserted ID used last time

  function insert_id(){

    return @mysql_insert_id($this->LinkID[$this->Line]);

  }

  //关闭当前数据库连接

  //close current database link

  function close(){

    return @mysql_close($this->LinkID[$this->Line]);

  }

  //检测mysql版本

  //test mysql version

  function version(){

    $query = @mysql_query("SELECT VERSION()",$this->LinkID[$this->Line]);

    return  @mysql_result($query, 0);

  }

  //返回友情提示信息

  //return to kindly note

  function DB_Error_t($query=''){

  }

  function DB_Error($query=''){

    global $PHP_SELF;

      //出错语句提示

      //error sentence 

      $errors = preg_replace("/'(.+?)'/is"," '//1' ",mysql_error());

        $charset ='';

        //提示语言

        //language noted

        $lang = Array('This SQL Error Info!', 'Error Script:', 'Present time:',

              'Http Host:', 'Server Name:', 'Server Software:',

              'Host IP Address:', 'Remote User Agent:', 'Current File:', 

              'Current Line:', 'Line.', 'The Error number:', 

              'The specific Error was:', 'SQL Query :', 'Not discover whateverly SQL Sentence ！');

        //时间处理

        //time

        $nowdate = date('Y-m-d H:i A');

        $errors = preg_replace("/'(.+?)'/is","'//1'",mysql_error());

      //检测是否有语句

      //test if there is any sentence.

      if($query==''){

        $query = $lang[14];

      }

      echo "

      ";

    exit;

  }

}

?>