想知道淘宝的那些技术人员是怎么工作的吗?他们是怎么管理组织项目的呢?有哪些我们学习之处呢。笔者打算从点点滴滴,由浅入深,从个别到具体的全面的分析一番,目的在于为一起学习共同进步。
从便于维护之角度上讲,OOP是将来必发展。以下此类为php操作数据库的常用操作。
我们可以看出:1全面使用php6函数,2OOP思想运用的淋漓尽致,3没有一句多余语句,4命名方法科学。
<?php class conn{ public $conn; function __construct(){ $this->conn=mysqli_connect('localhost','root','123123','air'); mysqli_query($this->conn,'SET NAMES UTF8'); } function __destruct(){ mysqli_close($this->conn); } public function delete($table,$condition="") { if(empty($condition)) { $this->halt('没有设置删除的条件'); return false; } $sql = "delete from ".$table." where 1=1 and ".$condition; if(!$this->conn->query($sql)){ return false; }else{ return true; }//if } public function update($table,$dataArray,$condition=""){ if(!is_array($dataArray) || (count($dataArray) <=0)){ $this->halt('没有要更新的数据'); return false; } $value=""; while(list($key,$val)=each($dataArray)){ $value.=$key." = '".$val."',"; } $value=substr($value,0,-1); $sql="UPDATE ".$table." SET ".$value." WHERE 1=1 AND ".$condition; if(!$this->conn->query($sql)){ return false; }else{ return true; } } public function insert($table,$dataArray){ $field=""; $value=""; if(!is_array($dataArray) || (count($dataArray) <=0)){ $this->halt('没有要更新的数据'); return false; } while (list($key,$val)=each($dataArray)){ $field.="$key,"; $value.="'$val',"; } $field=substr($field,0,-1); $value=substr($value,0,-1); $sql="INSERT INTO ".$table." (".$field.") values (".$value." )"; if(!$this->conn->query($sql)){ return false; }else{ return true; } } public function getOne($sql,$resultType=MYSQL_ASSOC){ $q=$this->conn->query($sql); $rt=$q->fetch_array($resultType); return $rt; } public function getAll($sql){ $q=$this->conn->query($sql); while($r=$q->fetch_array(MYSQLI_USE_RESULT)){ $rt[]=$r; } return $rt; } private function halt($msg='') { $msg .= "\r\n".$this->conn->error; die($msg); } public function descTable($t){//显示表结构 $rt=array(); $q=$this->conn->query("desc ".$t); while($r=$q->fetch_array(MYSQLI_USE_RESULT)){ $rt[]=$r; } return $rt; } public function makeSql($table,$start,$style,$out){//帮助你生成sql 语句 $r=$this->getAll("select column_name from information_schema.columns where table_name='".$table."'"); $column="("; $value="("; $array=""; for($i=$start;$i<count($r);$i++){ $column.=$r[$i]["column_name"].","; switch ($style) { case 0: $value.="'\$tmp[".$i."]',"; break; case 1: $value.="'\".\$_POST[\"".$r[$i]["column_name"]."\"].\"',"; break; default: $value.="'\".$".$r[$i]["column_name"].".\"',"; break; }//swith //输出数组形式 if($out){ //$dataArray[$r[$i]["column_name"]]="\$_POST[\"".$r[$i]["column_name"]."\"]"; $array.='"'.$r[$i]["column_name"].'"=>$_POST["'.$r[$i]["column_name"].'"],'; } } $column=substr($column,0,-1); $column.=")"; $value=substr($value,0,-1); $value.=")"; switch($out){ case 0: return "INSERT INTO ".$table." ".$column." VALUES ".$value; break; case 1: return $array; break; }//swith }//makesql public function showColumn($table,$start){ $r=$this->getAll("select column_name from information_schema.columns where table_name='".$table."'"); $show='<tr>'; for($i=$start;$i<count($r);$i++){ $show.='<td>\'.$r["'.$r[$i]["column_name"].'"].\'</td>'; } $show.='</tr>'; return $show; }//showColumn } ?>以此类纪念我的丢失的手机,你还有可能回来吗?