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

　　 <?php class 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：

　　 <?php class 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 ); } }

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