图书类程序设计初始化文件-PHP源码
php代码
name=$name;
//$this->price=$price;
//$this->author=$author;
}
function __set($property_name,$value)
{
return $this->$property_name=$value;
}
function __get($property_name)
{
if(isset($this->$property_name))
{
return $this->$property_name;
}
else
{
return null;
}
}
function add() //添加书目
{
$db=new database();
$query="INSERT INTO Computer (name,price,author) ";
$query.="VALUES ('$this->name',$this->price,'$this->author')";
$db->execute($query);
$db=null;
}
function update() //修改书目
{
$db=new database();
$query="UPDATE Computer SET ";
$query.="name='$this->name',price=$this->price,author='$this->author' ";
$query.="WHERE id=$this->id";
$db->execute($query);
$db=null;
}
function delete() //删除书目
{
$db=new database();
$query="DELETE FROM Computer WHERE id=$this->id";
$db->execute($query);
$db=null;
}
static function query($condition) //查询书目
{
if($condition=="" || $condition==null)
$condition="";
else
$condition="WHERE ".$condition;
$db=new database();
$query="SELECT * FROM Computer ".$condition;
$arr=$db->query($query);
return $arr;
$db=null;
}
}
/*
$b=new book("C语言",15.20,"吴强");
$b->add();
//$b->__set(new_author,"3");
//$b->update();
//$b->delete();
//*/
?>
/php/33539.htmlwww.phpzy.comtrue/php/33539.htmlTechArticle图书类程序设计初始化文件-PHP源码 php代码 name=$name;//$this->price=$price;//$this->author=$author;}function __set($property_name,$value){return $this->$property_name=$value;}function __get($property_name){if(isset($this->$pr...
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