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超轻量级php框架startmvc

php实现Mysql简易操作类

更新时间:2020-03-06 07:38:29 作者:startmvc
自己封装的Mysql简易操作类,已塞在Ben框架中,基于PDO来写的,代码风格上有些无厘头。。

自己封装的Mysql简易操作类,已塞在Ben框架中,基于PDO来写的,代码风格上有些无厘头。。。

mysql.class.php


<?php
class mysql extends PDO{
 public $server;
 public $database;
 public $user;
 public $password;
 public $sql;
 public function __construct($server,$database,$user,$password,$port=3306){
 $this->server = $server;
 $this->database = $database;
 $this->user = $user;
 $this->password = $password;
 parent::__construct("mysql:host=$server;port=$port;dbname=$database",$user,$password);
 $this->query('SET NAMES utf8');
 }
 public function drop($table){
 $sql = 'DROP TABLE '.$table.';';
 $re = $this->query($sql);
 if($re){
 return true;
 }else{
 return false;
 }
 }
 public function insert($table,$name,$value=null){
 $sql = "INSERT INTO ".$table.'(';
 if($value == null){
 $arrname = array_keys($name);
 $arrvalue = array_values($name);
 }else{
 $arrname = explode('|', $name);
 $arrvalue = explode('|', $value);
 }
 for($i=0;$i<count($arrname);$i++){
 if($i==count($arrname)-1){
 $sql = $sql.$arrname[$i];
 }else{
 $sql = $sql.$arrname[$i].",";
 }
 }
 $sql = $sql.")VALUES(";
 for($i=0;$i<count($arrvalue);$i++){
 if($i==count($arrvalue)-1){
 $sql = $sql."'".$arrvalue[$i]."'";
 }else{
 $sql = $sql."'".$arrvalue[$i]."',";
 }
 }
 $sql .=");";
 $re = $this->query($sql);
 if($re){
 return true;
 }else{
 return false;
 }
 }
 public function delete($table,$Conditionsname,$Conditionsvalue=null){
 if($Conditionsvalue!=null){
 $sql = "DELETE FROM ".$table." WHERE ".$Conditionsname."='".$Conditionsvalue."';";
 }else{
 $sql = "DELETE FROM ".$table." WHERE ";
 $arrname = array_keys($Conditionsname);
 $arrvalue = array_values($Conditionsname);
 for($i=0;$i<count($arrname);$i++){
 if($i==count($arrname)-1){
 $sql.=$arrname[$i].'='."'".$arrvalue[$i]."'";
 }else{
 $sql.=$arrname[$i].'='."'".$arrvalue[$i]."',";
 }
 }
 $sql.=';';
 }
 $re = $this->query($sql);
 if($re){
 return true;
 }else{
 return false;
 }
 }
 public function select($table,$name,$Conditionsname,$Conditionsvalue=null){
 if($Conditionsvalue!=null){
 $sql = "SELECT ".$name." FROM ".$table." WHERE ".$Conditionsname."='".$Conditionsvalue."';";
 }else{
 $sql = "SELECT ".$name." FROM ".$table." WHERE ";
 $arrname = array_keys($Conditionsname);
 $arrvalue = array_values($Conditionsname);
 for($i=0;$i<count($arrname);$i++){
 if($i==count($arrname)-1){
 $sql.=$arrname[$i].'='."'".$arrvalue[$i]."'";
 }else{
 $sql.=$arrname[$i].'='."'".$arrvalue[$i]."' and ";
 }
 }
 $sql.=';';
 }
 $re = $this->query($sql);
 $row = $re->fetch();
 return $row[$name];
 }
 public function update($table,$name,$value,$Conditionsname,$Conditionsvalue=null){
 if($Conditionsvalue!=null){
 $sql = "UPDATE ".$table." SET ".$name."= '".$value."' WHERE ".$Conditionsname."='".$Conditionsvalue."';";
 }else{
 $sql = "UPDATE ".$table." SET ".$name."= '".$value."' WHERE ";
 $arrname = array_keys($Conditionsname);
 $arrvalue = array_values($Conditionsname);
 for($i=0;$i<count($arrname);$i++){
 if($i==count($arrname)-1){
 $sql.=$arrname[$i].'='."'".$arrvalue[$i]."'";
 }else{
 $sql.=$arrname[$i].'='."'".$arrvalue[$i]."' and ";
 }
 }
 $sql.=';';
 }
 $re = $this->query($sql);
 if($re){
 return true;
 }else{
 return false;
 }
 }
 public function group($table,$name){
 $sql = "SELECT ".$name." FROM ".$table.";";
 $return = array();
 $re = $this->query($sql);
 while($row = $re->fetch(PDO::FETCH_ASSOC)){
 array_push($return,$row[$name]);
 }
 return $return;
 }
 public function fetchall($sql){
 $return = array();
 $re = $this->query($sql);
 while($row = $re->fetch(PDO::FETCH_ASSOC)){
 array_push($return,$row);
 }
 return $return;
 }
}

Mysql简易操作类