PHP实现的mysql操作类【MySQL与MySQLi方式】

本文实例讲述了PHP实现的mysql操作类。分享给大家供大家参考，具体如下：

首先是mysql方式

<?phpclass ConnectionMySQL{  //主机  private $host="localhost";  //数据库的username  private $name="root";  //数据库的password  private $pass="";  //数据库名称  private $table="phptest";  //编码形式  private $ut="utf-8";  //构造函数  function __construct(){    $this->ut=$ut;    $this->connect();  }  //数据库的链接  function connect(){    $link=mysql_connect($this->host,$this->name,$this->pass) or die ($this->error());    mysql_select_db($this->table,$link) or die("没该数据库：".$this->table);    mysql_query("SET NAMES '$this->ut'");  }  function query($sql, $type = '') {    if(!($query = mysql_query($sql))) $this->show('Say:', $sql);    return $query;  }  function show($message = '', $sql = '') {    if(!$sql) echo $message;    else echo $message.'<br>'.$sql;  }  function affected_rows() {    return mysql_affected_rows();  }  function result($query, $row) {    return mysql_result($query, $row);  }  function num_rows($query) {    return @mysql_num_rows($query);  }  function num_fields($query) {    return mysql_num_fields($query);  }  function free_result($query) {    return mysql_free_result($query);  }  function insert_id() {    return mysql_insert_id();  }  function fetch_row($query) {    return mysql_fetch_row($query);  }  function version() {    return mysql_get_server_info();  }  function close() {    return mysql_close();  }  //向$table表中插入值  function fn_insert($table,$name,$value){    $this->query("insert into $table ($name) value ($value)");  }  //根据$id值删除表$table中的一条记录  function fn_delete($table,$id,$value){    $this->query("delete from $table where $id=$value");    echo "id为". $id." 的记录被成功删除!";  }}$db = new ConnectionMySQL();$db->fn_insert('test','id,name,sex',"'','hongtenzone','M'");$db->fn_delete('test', 'id', 1);?>

mysqli的方式：

<?phpclass Mysql{  private $LocalHost = 'localhost';  private $LoaclUser = '';  private $LocalPass = '';  private $LocalBase = '';  private $LocalCode = 'UTF8';  private $PreFix;  private $Conn;  private $Start   = 0;  private $Error   = false; //数据库连接状态, false表示未连接或连接不正常  public $Err    = true; //Sql执行结果  private $Table;  private $Field   = '*';  private $Where   = '';  private $Order   = '';  private $PageSize = 0; //分页显示->每页多少条，0为不分页显示  private $PageCount = 1; //分页显示->总共有多少条  private $PageNum  = 1; //分页显示->总共有多少页  private $PageNo  = 1; //分页显示->当前第几页  private $PageKey  = 'page'; //分页url参数键  private $PageStart = 0; //分页显示->当前从第几条开始返回  private $Select;  private $Rest;  private $Result  = false;//结果集  public $FormArray = array();  public $Instr_ID = 0;  private $j = 0;  public function Parameter($Loca, $Root, $Pass, $Base, $Code, $PreFix = ''){    $this->LoaclUser = $Root;    $this->LocalBase = $Base;    $this->LocalCode = $Code;    $this->LocalHost = $Loca;    $this->LocalPass = $Pass;    $this->PreFix  = $PreFix;    return $this;  }  private function Connection( $Sql ){    !function_exists(mysqli_connect) ? die('查询失败，无法加载mysqli扩展') : null;    $this->Conn = @new mysqli( $this->LocalHost, $this->LoaclUser, $this->LocalPass, $this->LocalBase);    $this->Error = mysqli_connect_errno() == 0 ? true : false;    !$this->Error ? die('数据库连接错误，请检查数据库连接参数') : null;    $this->Conn->query('SET NAMES ' . $this->LocalCode);    $this->Rest = $this->Conn->query($Sql);    $this->Err = mysqli_error($this->Conn);    $this->Instr_ID = mysqli_insert_id($this->Conn);    $this->Rest->free_result;    $this->Conn->close;    $this -> FormArray = '';    return $this;  }  public function null(){    $this->PageSize = 0;    //$this->PageCount = 1;    $this->PageStart = 1;    $this->Field   = ' * ';    $this->Select  = '';    unset($this->Table, $this->Where,$this->Order, $this->Result);  }  public function Table( $TableName ) {//数据表   $this -> null();   $this->Table = '`' . $this->PreFix . $TableName . '`';   return $this;  }  public function Field( $Array = '*' ) {//数据字段   !empty( $this->Field ) ? $this->Field = '' : null;   $Array = explode(',', $Array);   foreach ( $Array as $field ) {     $this->Field .= !$this->Start ? '`' . $field . '`' : ', `' . $field . '`';     $this->Start++;   }   $this->Start = 0;   return $this;  }  public function Where( $Where ) {//条件    $this->Where = ' where ' .$Where;    return $this;  }  public function Order( $Order ) {//排序   $this->Order = ' order by ' . $Order;   return $this;  }  public function pk( $key ) {//分页url参数键   $this->PageKey = $key;   return $this;  }  public function Page( $PageSize ) {//分页   $this->PageSize = $PageSize;   $this->PageNo  = $this->get( $this->PageKey );   $this->PageNo  = empty( $this->PageNo ) || !isset( $this->PageNo ) || !is_numeric( $this->PageNo ) || $this->PageNo < 1 ? 1 : $this->PageNo;   return $this;  }  public function post( $Key, $Filter = true ){    return $Filter ? strip_tags($_POST[$Key]) : $_POST[$Key];  }  public function get( $Key, $Filter = true ){    return $Filter ? strip_tags($_GET[$Key]) : $_GET[$Key];  }  public function Sel(){    $this->Select = 'Select ' . $this->Field . ' from ' . $this->Table . $this->Where . $this->Order;    $this->Connection( $this->Select );    if ( $this->Rest->num_rows ) {     while ( $Rs = $this->Rest->fetch_assoc() ) {       $this->Result[] = $Rs;     }    }    $DataBase = $this->Result;    return empty($DataBase) ? false : $DataBase;  }  public function querys( $Sql = '', $Type = 'not', $biao = false ) {    $this->Select = $Sql;    $this->Connection( $this->Select );    if ( $this->Rest->num_rows ) {    if ( !$biao ) {     while ( $Rs = $this->Rest->fetch_array() ) {       $this->Result[] = !preg_match('/^/d+$/i', $Type) ? $Rs : $Rs[ $Type ];     }    } else {     while ( $Rs = $this->Rest->fetch_assoc() ) {       $this->Result[] = $Rs;     }    }    }    $DataBase = $this->Result;    return empty($DataBase) ? false : $DataBase;  }  public function executes( $Sql = '' ){    $this->Connection( $Sql );    return $this->Rest;  }  public function exists( $T = '', $F = '', $W = ''){    if ( empty( $F ) ) { return 0; }    $cmd = empty( $W ) ? 'Select sum(' . $F . ') as `baiyinum` from `' . $this->PreFix . $T .'`' : 'Select sum(' . $F . ') as `baiyinum` from `' . $this->PreFix . $T .'` Where ' . $W;    $this->Connection( $cmd );    unset( $T, $F, $W, $cmd );    $Rel = $this->Rest->fetch_array();    return round( $Rel['baiyinum'], 2 );  }  public function ExistsTo( $Bili = 10000, $T = '', $F = '', $W = ''){    if ( empty( $F ) ) { return 0; }    $cmd = empty( $W ) ? 'Select sum(' . $F . ') as `baiyinum` from `' . $this->PreFix . $T .'`' : 'Select sum(' . $F . ') as `baiyinum` from `' . $this->PreFix . $T .'` Where ' . $W;    $this->Connection( $cmd );    unset( $T, $F, $W, $cmd );    $Rel = $this->Rest->fetch_array();    return round( $Rel['baiyinum'] * $Bili );  }  public function Select( $Type = true, $ListNum = 1 ){ //返回记录（数组形式， 返回条数）   $this->Select = 'Select ' . $this->Field . ' from ' . $this->Table . $this->Where . $this->Order;   if ( is_numeric( $ListNum ) ) {    if ( $this->PageSize > 0 ) {      $this->Connection( $this->Select );//执行查询      $this->PageCount = $this->Rest->num_rows;//取得记录总数      $this->PageNum  = ceil($this->PageCount / $this->PageSize); //总共有多少页      $this->PageNo  = $this->PageNo > $this->PageNum ? $this->PageNum : $this->PageNo;      $this->PageStart = ( $this->PageNo - 1 ) * $this->PageSize;  //当前从第几条开始返回      $this->Select  .= ' limit ' . $this->PageStart . ', ' .$this->PageSize; //重新构造sql语句    } else {      $this->Select  .= ' limit ' . $ListNum; //重新构造sql语句    }   } else {      $this->Select  .= ' limit 1'; //重新构造sql语句   }   //echo $this->Select;   $this->Connection( $this->Select );//再次执行查询   if ( $this->Rest->num_rows ) {//如果记录存在    if ( $Type ) {     while ( $Rs = $this->Rest->fetch_array() ) {       $this->Result[] = $Rs;     }    }else{     while ( $Rs = $this->Rest->fetch_assoc() ) {       $this->Result[] = $Rs;     }    }   }   if ( ( $ListNum == 1 or !is_numeric( $ListNum ) ) && !$this->PageSize) { $this->Result = $this->Result[0]; }   $DataBase = $this->Result;   return empty($DataBase) ? false : $DataBase;  }  public function Num() { //返回记录总数   $this->Select = 'Select ' . $this->Field . ' from ' . $this->Table . $this->Where . $this->Order;   $this->Connection( $this->Select );//执行查询   return $this->Rest->num_rows;//取得记录总数  }  public function PageNav($NumNav = false ) { //分页   $Action = $this -> get('action');   !empty( $Action ) or $Action = 'index';   $Module = $this -> get('module');   !empty( $Module ) or $Module = 'index';   $NavUrl  = '/' . $Module . '/' . $Action . '/' . $this -> PageKey .'/';   $NaIndex = '/' . $Module . '/' . $Action;   $PageHtml = "/n<div class=/"pagenav/">";   $PageHtml .= '<span>' . $this->PageCount . '条记录    ' . $this->PageNo . '/' . $this->PageNum . '页</span>      ';   $this->PageNo <= 1 or $PageHtml .= "<a href=/"" . $NaIndex . "/">首页</a>/n<a href=/"" . $NavUrl . ($this->PageNo - 1) . "/">上一页</a>/n";  if ( $NumNav ) { $PageHtml .= $this->NumPage($NavUrl); }  $this->PageNo >= $this->PageNum or $PageHtml .= "<a href=/"" . $NavUrl. ($this->PageNo + 1) . "/">下一页</a>/n<a href=/"" . $NavUrl . $this->PageNum . "/">尾页</a>/n";  $PageHtml .= "</div>/n";  return $PageHtml;  }  private function NumPage( $Can = '' ) { //数字分页    $NumHtml = '';    $First  = 1;    $Last  = $this->PageNum;    if ( $this->PageNum > 5 ) {      if ( $this->PageNo < $this->PageNum ) {       $First = $this->PageNo - 2;       $Last = $this->PageNo + 2;      }else{       $First = $this->PageNo - 4;       $Last = $this->PageNum;      }    }    if ( $First < 1 ) { $First  = 1; $Last = $First + 4;}    if ( $Last > $this->PageNum ) { $First  = $this->PageNum - 4; $Last = $this->PageNum;}    for( $i = $First; $i <= $Last; $i++) {      $NumHtml .= $this->PageNo != $i ? "/n/t" . '<a href="' . $Can . $i . '" rel="external nofollow" >' . $i . '</a>' . "/n/t" : "/n/t" .'<a class="hover" disabled="disabled">' . $i . '</a>' . "/n/t";    }    unset($Can, $First, $i, $Last);    return $NumHtml;  }  public function UserPage($NumNav = false, $PageName = 'index', $Mulu = 'user' ) { //会员中心分页   $NavUrl  = '/' . $Mulu . '/' . $PageName . '/' . $this->PageKey . '/';   $PageHtml = "/n<div class=/"pagenav/">";   $PageHtml .= '<span>' . $this->PageCount . '条记录    ' . $this->PageNo . '/' . $this->PageNum . '页</span>      ';   $this->PageNo <= 1 or $PageHtml .= "<a href=/"" . $NavUrl . "1/">首页</a>/n<a href=/"" . $NavUrl . ($this->PageNo - 1) . "/">上一页</a>/n";  if ( $NumNav ) { $PageHtml .= $this->NumPage($NavUrl); }  $this->PageNo >= $this->PageNum or $PageHtml .= "<a href=/"" . $NavUrl. ($this->PageNo + 1) . "/">下一页</a>/n<a href=/"" . $NavUrl . $this->PageNum . "/">尾页</a>/n";  $PageHtml .= "</div><div class=/"clear/"></div>/n";  return $PageHtml;  }  //表单处理开始  //判断表单时候提交  public function FormIs( $Keys = 'mm' ) {    return $_POST[ $Keys ] == 1 ? true : false;  }  //post方式获取数据  public function _post( $Keys = '', $TiHuan = '') {    $Values = strip_tags( $_POST[ $Keys ] );    $this->FormArray[$Keys] = empty( $Values ) ? $TiHuan : $Values;    return empty( $Values ) ? $TiHuan : $Values;  }  //get方法获取数据  public function _get( $Keys = '', $TiHuan = '') {    $Values = strip_tags( $_GET[ $Keys ] );    return empty( $Values ) ? $TiHuan : $Values;  }  //判断是否为数字并且不小于0  public function IsNum( $Num = 0, $Mesg = '参数必须为数字' ) {    if ( is_numeric( $Num ) && !empty( $Num ) && $Num >= 0 ) {      return $Num;    }else{      die( $Mesg );    }  }  //判断是否为数字并且不小于0返回True/False  public function NumBer( $Num = 0) {     return is_numeric( $Num ) && !empty( $Num ) && $Num >= 0 ? true : false;  }  //检测相关数据似乎存在  public function IsData($Types = true, $memg = '数据已经存在' ){    $this->Connection('select ' . $this->Field . ' from ' . $this->Table . $this->Where);    if ( $Types ){      $this->Rest->num_rows > 0 ? die( $memg ) : null;    } else {      return $this->Rest->num_rows;    }  }  //写入数据库记录  public function into( $Mesg = '' ){    !is_array( $this->FormArray ) ? die( $Mesg ) : null;    $Sql = 'insert into ' . $this->Table . ' (`';    $I  = 0;    foreach ( $this->FormArray as $Key => $Val ){      $Duan .= !$I ? $Key . '`' : ', `' . $Key . '`';      if ( is_numeric( $Val ) ){        $Vals .= !$I ? $Val : ', ' . $Val;      }else{        $Vals .= !$I ? '/'' . $Val . '/'' : ', /'' . $Val . '/'';      }      $I++;    }    $Sql .= $Duan . ') values (' . $Vals . ')';    //@file_put_contents('1.sql', $Sql, FILE_APPEND);    $this->Connection( $Sql );    return !empty( $this->Err ) ? false : true;  }  //数组形式写入数据  public function MsgBox( $Table = '', $Filed = array() ) {    $this -> Table($Table);    foreach( $Filed as $Key => $Val ) {     $this -> FormArray[ $Key ] = $Val;    }   return $this -> Into('未取得数据');  }  //修改数据库记录  public function Edit( $Array = array() ) {    if ( empty( $Array ) ) { $Array = $this -> FormArray; }    if ( !is_array( $Array ) || empty( $Array ) ) {      return false;    } else {     $Sql = 'update ' . $this -> Table . ' set ';     $I  = 0;     $Sub = '';     $Huan = array('-' => '[jian]', '+' => '[jia]', '*' => '[cheng]', '/' => '[chu]');     $Zhan = array('[jian]' => '-', '[jia]' => '+', '[cheng]' => '*', '[chu]' => '/');     foreach ( $Array as $Files => $Val ) {       $Val = !is_numeric( $Val ) && !preg_match('//`/w+/`/s*(/+|/-|/*|//)/i', $Val) ? '/'' . $Val . '/'' : $Val;       foreach ( $Huan as $key => $val ){         $Val = str_replace($key, $val, $Val);       }       $duan = !$I ? '`' . $Files . '` = ' : ', `' . $Files . '` = ';       $Sub .= $duan . $Val;       $I++;     }     $Sql .= $Sub . $this -> Where;     foreach ( $Zhan as $Fan => $Hui ) {       $Sql = str_replace($Fan, $Hui, $Sql);     }     //echo $Sql; die;    $this -> Connection( $Sql );    unset( $Array, $duan, $Fan, $Files, $Huan, $Hui, $I, $key, $Sql, $Sub, $Val, $Zhan, $val );    return !empty( $this -> Err ) ? false : true;   }  }  //删除数据库记录  public function del(){    $Sql = 'delete from ' . $this->Table . $this->Where;    $this->Connection( $Sql );    unset($Sql);    return !empty( $this->Err ) ? false : true;  }  //表单处理结束  //页面跳转  public function Msg( $Text = '操作成功' ) {    echo '<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />';    echo '<script type="text/javascript"> <!--  alert("' . $Text . '");  document.location="' . $_SERVER['HTTP_REFERER'] . '"; //--></script>'; exit;  }  #取得系统当前时间  public function Times(){    return str_replace('-', '[jian]', date('Y-m-d H:i:s'));  }  #取得用户IP地址  public function GetIP(){   if (getenv("HTTP_CLIENT_IP") && strcasecmp(getenv("HTTP_CLIENT_IP"), "unknown"))    $ip = getenv("HTTP_CLIENT_IP");    else if (getenv("HTTP_X_FORWARDED_FOR") && strcasecmp(getenv("HTTP_X_FORWARDED_FOR"), "unknown"))    $ip = getenv("HTTP_X_FORWARDED_FOR");    else if (getenv("REMOTE_ADDR") && strcasecmp(getenv("REMOTE_ADDR"), "unknown"))    $ip = getenv("REMOTE_ADDR");    else if (isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] && strcasecmp($_SERVER['REMOTE_ADDR'], "unknown"))    $ip = $_SERVER['REMOTE_ADDR'];    else    $ip = "unknown";   return($ip);  }  //最后关闭数据库连接  public function Close(){    !is_object( $this -> Conn ) or mysqli_close( $this -> Conn );  }}