PHP实现的mysql操作类【MySQL与MySQLi方式】
发布时间：2021-03-05 06:15:49 所属栏目：PHP教程 来源：网络整理
导读：本篇章节讲解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 ut=$ut; $this->connect(); } //数据库的链接 function connect(){ $link=mysql_connect($this->host,$this->name,$this->pass) or die ($this->error()); mysql_sel
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本篇章节讲解PHP实现的mysql操作类。分享给大家供大家参考，具体如下： 首先是mysql方式 ut=$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 $message.''.$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： 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 = '',$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 = "nPageCount . '条记录 ' . $this->PageNo . '/' . $this->PageNum . '页 ';
$this->PageNo <= 1 or $PageHtml .= "nPageNo - 1) . "">上一页n";
if ( $NumNav ) { $PageHtml .= $this->NumPage($NavUrl); }
$this->PageNo >= $this->PageNum or $PageHtml .= "PageNo + 1) . "">下一页nPageNum . "">尾页n";
$PageHtml .= "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 ? "nt" . '' . $i . '' . "nt" : "nt" .'' . "nt";
}
unset($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 PageCount . '条记录 ' . $this->PageNo . '/' . $this->PageNum . '页 ';
$this->PageNo <= 1 or $PageHtml .= "nPageNo - 1) . "">上一页n";
if ( $NumNav ) { $PageHtml .= $this->NumPage($NavUrl); }
$this->PageNo >= $this->PageNum or $PageHtml .= "PageNo + 1) . "">下一页nPageNum . "">尾页n";
$PageHtml .= "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,$Huan,$I,$key,$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 '';
echo '';
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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