yaf框架封裝簡單的pdo類

<?php
/**

• Created by PhpStorm.
• User: Administrator
• Date: 2017/7/24

• Time: 14:03
  */
  /*
  　 數據庫PDO操作
  　*/
  class DAO {
  private function Link(){
  $config=Yaf_Application::app()->getConfig();
  try{
  $PDO=new PDO($config['mysql']['dsn'],$config['mysql']['user'],$config['mysql']['pass']);
  $PDO->query("set names utf8"); //數據庫utf8
  //關閉自動提交
  $PDO->setAttribute(PDO::ATTR_AUTOCOMMIT,0);
  return $PDO;
  }
  catch (Exception $e){
  echo $e->getMessage();
  }
  }
  //查詢單條數據
  public function quOne($sql,$term=''){
  $PDO=$this->Link();
  try{
  $stmt = $PDO->prepare($sql);
  if(!empty($term)){
  foreach ($term as $key=>$value){
  $stmt->bindParam($key, $term[$key], PDO::PARAM_STR);
  }
  }
  $stmt->execute();
  // $PDO->commit();
  return $stmt->fetch(PDO::FETCH_ASSOC);
  } // if there is a problem we can handle it here
  catch (Exception $e) {
  echo $e->getMessage();
  }
  }
  //查詢所有數據
  public function quAll($sql,$term=''){
  $PDO=$this->Link();
  try{
  $stmt = $PDO->prepare($sql);
  if(!empty($term)) {
  foreach ($term as $key => $value) {
  $stmt->bindParam($key, $term[$key], PDO::PARAM_STR);
  }
  }
  $stmt->execute();
  // $PDO->commit();
  return $stmt->fetchAll(PDO::FETCH_ASSOC);
  } // if there is a problem we can handle it here
  catch (Exception $e) {
  echo $e->getMessage();
  }
  }
  //插入單條數據
  //$name 爲表名
  //$data添加的數據爲一個數組
  public function inOne($name,$data,$id="",$statc=true){
  if(!$statc){
  return false;
  }
  if(!is_array($data)){
  return false;
  }
  $PDO=$this->Link();
  foreach ($data as $key=>$value){
  $keys[]=$key;
  $values[]="'".$value."'";
  }
  $sql="insert into ".$name." (";
  $sql.=implode(",",$keys);
  $sql.=",_str";
  $sql.=") values (";
  $sql.=implode(",",$values);
  $_str=time().$this->getrandstr();
  $sql.=",'$_str'";
  $sql.=" )";
  try{
  $PDO->beginTransaction();
  $stmt = $PDO->prepare($sql);
  $state=$stmt->execute();
  if(empty($state)){
  return false;
  }
  if(empty($id)){
  $PDO->commit();
  return true;
  }
  $insql="select $id from $name where _str = '$_str'";
  $InsertId = $PDO->prepare($insql);
  $InsertId->execute();
  $PDO->commit();
  return $InsertId->fetch(PDO::FETCH_ASSOC);
  } // if there is a problem we can handle it here
  catch (Exception $e) {
  $PDO->rollBack();
  return false;
  }
  }
  //插入多條語句
  public function inAll($name,$data,$id="",$statc=true){
  if(!$statc){
  return false;
  }
  if(!is_array($data)){
  return false;
  }
  $PDO=$this->Link();
  $valueStr='';
  $i=0;
  foreach ($data as $key=>$value){
  $i++;
  if(!is_array($value)){
  return false;
  }
  $values=array();
  $keys=array();
  $valueStr.="(";
  foreach ($value as $k=>$v){
  $values[]=$value[$k];
  $keys[]=$k;
  }
  $_str=time().$this->getrandstr();
  $_strs[]=$_str;
  $keys[]="_str";
  $values[]="'$_str'";
  $valueStr.=implode(",",$values).")";
  if(count($data)==$i){
  $valueStr .= "";
  }else{
  $valueStr .= ",";
  }
  }
  $sql="insert into ".$name." (";
  $sql.=implode(",",$keys);
  $sql.=") values ".$valueStr;
  try{
  $PDO->beginTransaction();
  $stmt = $PDO->prepare($sql);
  $stmt->execute();
  if(empty($id)){
  $PDO->commit();
  return true;
  }
  $_strTerm="'".implode("','",$_strs)."'";
  $insql="select $id from $name where _str in ($_strTerm)";
  $InsertId = $PDO->prepare($insql);
  $InsertId->execute();
  $PDO->commit();
  return $InsertId->fetchAll(PDO::FETCH_ASSOC);
  } // if there is a problem we can handle it here
  catch (Exception $e) {
  $PDO->rollBack();
  return false;
  }
  }

  //多表關聯插入
  //參數值 term y 是多條語句，不是
  /$table["table"]["a"]["a_id"=>"b_aid"];
  $table["table"]["b"];
  $table["table"]["c"];
  /
  // datas["tablename"][]["data"];
  public function corr($tables='',$datas){
  try{
  $arryKey=[];
  $PDO=$this->Link();
  $PDO->beginTransaction();
  foreach ($tables as $term=>$HasKey){
  $data=$datas[$term];
  //區分$data 是否是多條插入
  if(count($data)==1){
  /生成單條插入語句/
  $keys=null;
  $values=null;
  foreach ($data[0] as $key=>$value){
  if(!empty($arryKey[$key])){
  $keys[]=$key;
  $values[]="'".$arryKey[$key]."'";
  }else{
  $keys[]=$key;
  $values[]="'".$value."'";
  }
  }
  if(is_array($HasKey)){
  $sql="insert into ".$term." (";
  $sql.=implode(",",$keys);
  $sql.=",_str";
  $sql.=") values (";
  $sql.=implode(",",$values);
  $_str=time().$this->getrandstr();
  $sql.=",'$_str'";
  $sql.=" )";
  $state[]= $PDO->exec($sql);
  $idSql="select ".key($HasKey)." from {$term} where _str='$_str'";

              $InsertId=$PDO->prepare($idSql);
              $InsertId->execute();
              $inner=$InsertId->fetch(PDO::FETCH_ASSOC);
              $arryKey[$HasKey[key($HasKey)]]=$inner[key($HasKey)];
              }else{
              $sql="insert into ".$term." (";
              $sql.=implode(",",$keys);
              $sql.=",_str";
              $sql.=") values (";
              $sql.=implode(",",$values);
              $_str=time().$this->getrandstr();
              $sql.=",'$_str'";
              $sql.=" )";
              $state[]=$PDO->exec($sql);
          }
      }else{
          $valueStr='';
          $i=0;
              foreach ($data as $key => $value) {
                  $i++;
                  $values = null;
                  $keys = null;
                  $valueStr .= "(";
                  foreach ($value as $k => $v) {
                      if(!empty($arryKey[$k])){
                          $keys[]=$k;
                          $values[]="'".$arryKey[$k]."'";
                      }else{
                          $keys[]=$k;
                          $values[]="'".$v."'";
                      }
                  }
                  $_str = "'".time() . $this->getrandstr()."'";
                  $_strs[] = $_str;
                  $keys[] = "_str";
                  $values[] = $_str;
                  if(count($data)==$i){
                      $valueStr .= implode(",", $values) . ")";
                  }else{
                      $valueStr .= implode(",", $values) . "),";
                  }
  
              }
              $sql = "insert into " . $term . " (";
              $sql .= implode(",", $keys);
              $sql .= ") values " . $valueStr;
              $state[]=$PDO->exec($sql);
      }
  }

if(in_array(false,$state)){
throw new Exception("已回滾");
}
$PDO->commit();
return $arryKey;
}
catch (Exception $e){
$PDO->rollBack();
return false;
}

}

//刪除
public function Del ($sql,$term,$statc=true){
    if(!$statc){
        return false;
    }
    $PDO=$this->Link();
    try{
        $PDO->beginTransaction();
        $stmt = $PDO->prepare($sql);
        if(!empty($term)){
            foreach ($term as $key=>$value){
                $stmt->bindParam($key, $value, PDO::PARAM_STR);
            }
        }
        $stmt->execute();
        $PDO->commit();
        return true;
    }  // if there is a problem we can handle it here
    catch (Exception $e) {
        $PDO->rollBack();
       return false;
    }
}
//修改
public function Update ($sql,$statc=true){
    if(!$statc){
        return false;
    }
    $PDO=$this->Link();
    try{
        $PDO->beginTransaction();
        $stmt = $PDO->prepare($sql);
        if(!empty($term)){
            foreach ($term as $key=>$value){
                $stmt->bindParam($key, $term[$key], PDO::PARAM_STR);
            }
        }
        $result=$stmt->execute();
        $PDO->commit();
        if($result){
            return true;
        }else{
            return false;
        }
    }  // if there is a problem we can handle it here
    catch (Exception $e) {
        $PDO->rollBack();
        return false;
    }
}
//獲取隨機字符

private function getrandstr(){
$str='ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890';
$randStr = str_shuffle($str);//打亂字符串
$rands= substr($randStr,0,6);//substr(string,start,length);返回字符串的一部分
return $rands;
}
}