php写一个操作mysql的类

首先是mysql方式<?phpclass ConnectionMySQL{//主机private $host="localhost";//数据库的usernameprivate $name="root";//数据库的passwordprivate $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 . '">' . $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0public 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/Falsepublic 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 );}}