Heim >Backend-Entwicklung >PHP-Tutorial >My First Time For PHP
前言
第一次接触PHP,功能需求很简单:负责提供WEB接口,接收数据,然后与数据库交互,最终响应XML结果。过程中接触了PHP的很多常用语法和功能,比如PDO对数据库的操作、XML操作、面向对象、正则表达式、输出输出......等等。基本是上网搜索示例,然后自己摸索着写代码,因为N年来一直写的是.Net,所以项目过程中受到.Net很大影响,用了三层构架,甚至为每个PHP接口写了一个类似CodeBehind的Class,没有时间了解PHP下的开发框架,完全按自己的想法搭建的项目。在此篇随笔记录,以便以后备忘查询,也希望得到PHP专业人士的指点。
DAL
原本是想封装个DBUtility的类,但几天时间无法对PDO了解的全面和应用自如,只得把数据库相关操作混合在DAL中。
代码
php
/* ***********************************************************
DAL
wujian 2010-01-19
*********************************************************** */
define ( " DB_BASIC " , " mysql:host=localhost;dbname=asterisk " );
define ( " DB_USER " , " root " );
define ( " DB_PSWD " , " root " );
class DAL
{
private static $pdo ;
// 构造函数
public function __construct()
{
//
}
// 判断分组是否存在
public function GroupExist( $grpid )
{
$this -> pdo = new PDO(DB_BASIC , DB_USER , DB_PSWD);
$cmd = " SELECT COUNT(*) FROM extension_group WHERE `grp_id` = " . $grpid ;
$rs = $this -> pdo -> query( $cmd );
$arr = $rs -> fetchAll();
$this -> pdo = null ;
if ( $arr [ 0 ][ 0 ] == 1 )
{
return true ;
}
else
{
return false ;
}
}
// 判断分机是否存在
public function ExtensionExist( $etn )
{
$this -> pdo = new PDO(DB_BASIC , DB_USER , DB_PSWD);
$cmd = " SELECT COUNT(*) FROM extension_email WHERE `etn` = ' " . $etn . " ' " ;
$rs = $this -> pdo -> query( $cmd );
$arr = $rs -> fetchAll();
$this -> pdo = null ;
if ( $arr [ 0 ][ 0 ] == 1 )
{
return true ;
}
else
{
return false ;
}
}
// 添加分机(分机号,分组ID,EMAIL,名称,备注)
public function ExtensionAdd( $etn , $grpid , $email , $name , $desc )
{
/* prepare方式
$stmt = $this->pdo->prepare("INSERT INTO extensionemail (`etn`, `grp_id`, `email`, `nm`, `desc`) VALUES (:a, :b, :c, :d, :e)");
$stmt->bindParam(':a', $etn);
$stmt->bindParam(':b', $grpid);
$stmt->bindParam(':c', $email);
$stmt->bindParam(':d', $name);
$stmt->bindParam(':e', $desc);
$stmt->execute();
*/
/* exec方式 */
$this -> pdo = new PDO(DB_BASIC , DB_USER , DB_PSWD);
$cmd = " INSERT INTO extension_email (`etn`, `grp_id`, `email`, `nm`, `desc`) VALUES (' " . $etn . " ', " . $grpid . " , ' " . $email . " ', ' " . $name . " ', ' " . $desc . " ') " ;
$s = $this -> pdo -> exec ( $cmd );
$this -> pdo = null ;
if ( $s == 1 ){
return true ;
}
else {
return false ;
}
}
// 更新分机(分机号,分组ID,EMAIL,名称,备注)
public function ExtensionEdit( $etn , $grpid , $email , $name , $desc )
{
$this -> pdo = new PDO(DB_BASIC , DB_USER , DB_PSWD);
$cmd = " UPDATE extension_email SET `grp_id` = " . $grpid . " , `email` = ' " . $email . " ', `nm` = ' " . $name . " ', `desc` = ' " . $desc . " ' WHERE `etn` = " . $etn ;
$s = $this -> pdo -> exec ( $cmd );
$this -> pdo = null ;
if ( $s == 1 ){
return true ;
}
else {
return false ;
}
}
// 激活分机
public function ExtensionAct( $etn , $state )
{
$this -> pdo = new PDO(DB_BASIC , DB_USER , DB_PSWD);
$cmd = " UPDATE extension_email SET `state` = " . $state . " , `reg_time` = CURRENT_TIMESTAMP() WHERE `etn` = " . $etn ;
$s = $this -> pdo -> exec ( $cmd );
$this -> pdo = null ;
if ( $s == 1 ){
return true ;
}
else {
return false ;
}
}
// 分机列表
public function ExtensionList( $grpid )
{
$this -> pdo = new PDO(DB_BASIC , DB_USER , DB_PSWD);
$cmd = " SELECT * FROM extension_email WHERE `grp_id` = " . $grpid ;
if ( $grpid == 0 )
{
$cmd = " SELECT * FROM extension_email " ;
}
$rs = $this -> pdo -> query( $cmd );
$arr = $rs -> fetchAll();
$this -> pdo = null ;
return $arr ;
}
// 分组列表
public function GroupList()
{
$this -> pdo = new PDO(DB_BASIC , DB_USER , DB_PSWD);
$cmd = " SELECT * FROM extension_group " ;
$rs = $this -> pdo -> query( $cmd );
$arr = $rs -> fetchAll();
$this -> pdo = null ;
return $arr ;
}
}
?>
BLL
业务层调用DAL,并为UI提供服务
代码
php
/* ***********************************************************
BLL
吴剑 2010-01-19
*********************************************************** */
require " dal.php " ;
class BLL
{
private static $myDAL ;
// 构造函数
public function __construct()
{
$this -> myDAL = new DAL();
}
// 判断分组是否存在
public function GroupExist( $grpid )
{
return $this -> myDAL -> GroupExist( $grpid );
}
// 判断分机是否存在
public function ExtensionExist( $etn )
{
return $this -> myDAL -> ExtensionExist( $etn );
}
// 添加分机(分机号,EMAIL,名称,备注)
public function ExtensionAdd( $etn , $grpid , $email , $name , $desc )
{
return $this -> myDAL -> ExtensionAdd( $etn , $grpid , $email , $name , $desc );
}
// 更新分机(分机号,分组ID,EMAIL,名称,备注)
public function ExtensionEdit( $etn , $grpid , $email , $name , $desc )
{
return $this -> myDAL -> ExtensionEdit( $etn , $grpid , $email , $name , $desc );
}
// 激活分机
public function ExtensionAct( $etn , $state )
{
return $this -> myDAL -> ExtensionAct( $etn , $state );
}
// 分机列表
public function ExtensionList( $grpid )
{
return $this -> myDAL -> ExtensionList( $grpid );
}
// 分组列表
public function GroupList()
{
return $this -> myDAL -> GroupList();
}
}
?>
UI
虽然在PHP中用类似CodeBehind的方式没有事件与页面控件的关联,没有Class与Page间的对象继承关系,但还是觉得这样分离逻辑会更清晰,也许长期用.Net的惯性思维,不喜欢将逻辑代码嵌套在页面中。
extension_add.php
php
require " extension_add.class.php " ;
?>
extension_edit.class.php
代码
php
/* ***********************************************************
添加分机
吴剑 2010-01-19
*********************************************************** */
// 加载公共类
require " class/common.php " ;
// 加载业务类
require " class/bll.php " ;
define ( " AUTH_KEY " , " test " );
class ExtensionAdd
{
// 页面初始化
static function pageLoad()
{
$guidID = "" ;
// 0:成功 1:密钥无效 2:提交数据格式有误 3:分机号已存在 4:分组不存在 9:接口异常
$result = 9 ;
if ( isset ( $_POST [ " data " ]))
{
try
{
$doc = new DOMDocument();
$doc -> loadXML( $_POST [ " data " ]);
$root = simplexml_import_dom ( $doc );
$the_authKey = $root -> head -> authKey;
$the_guidID = $root -> head -> guidID;
$the_extension = $root -> body -> extension;
$the_groupID = $root -> body -> groupID;
$the_email = $root -> body -> email;
$the_name = $root -> body -> name;
$the_desc = $root -> body -> desc;
$guidID = $the_guidID ;
// 数据格式验证
if (Common :: IsExtension( $the_extension ) && Common :: IsInt( $the_groupID ) && Common :: IsEmail( $the_email ))
{
// 密钥验证
if ( $the_authKey == AUTH_KEY)
{
// 创建业务对象
$myBLL = new BLL();
// 分机是否存在
if ( $myBLL -> ExtensionExist( $the_extension ))
{
$result = 3 ;
}
else
{
// 分组是否存在
if ( $myBLL -> GroupExist( $the_groupID ))
{
if ( $myBLL -> ExtensionAdd( $the_extension , $the_groupID , $the_email , $the_name , $the_desc ))
{
$result = 0 ;
}
}
else
{
$result = 4 ;
}
}
}
else
{
// 密钥无效
$result = 1 ;
}
}
else
{
// 数据格式有误
$result = 2 ;
}
}
catch ( Exception $e )
{
// 数据格式有误
$result = 2 ;
}
}
else
{
// 提交数据格式有误
$result = 2 ;
}
$xml = " " ;
$xml = $xml . " " ;
// 指定页面编码
header ( " content-type:text/xml; charset=utf-8 " );
echo ( $xml );
}
}
ExtensionAdd :: pageLoad();
?>
extension_list.class.php
代码
php
/* ***********************************************************
分机列表
吴剑 2010-01-19
*********************************************************** */
// 加载业务类
require " class/bll.php " ;
define ( " AUTH_KEY " , " test " );
class ExtensionList
{
// 页面初始化
static function pageLoad()
{
$guidID = "" ;
// 0:成功 1:密钥无效 2:提交数据格式有误 3:分机号已存在 4:分组不存在 9:接口异常
$etn = "" ;
if ( isset ( $_POST [ " data " ]))
{
try
{
$doc = new DOMDocument();
$doc -> loadXML( $_POST [ " data " ]);
$root = simplexml_import_dom ( $doc );
$the_authKey = $root -> head -> authKey;
$the_guidID = $root -> head -> guidID;
$the_groupID = $root -> body -> groupID;
$guidID = $the_guidID ;
// 密钥验证
if ( $the_authKey == AUTH_KEY)
{
// 创建业务对象
$myBLL = new BLL();
$arr = $myBLL -> ExtensionList( $the_groupID );
foreach ( $arr as $row )
{
$etn = $etn . "
$etn = $etn . "
$etn = $etn . "
$etn = $etn . "
$etn = $etn . "
$etn = $etn . "
$etn = $etn . "
$etn = $etn . "
$etn = $etn . "
}
}
}
catch ( Exception $e )
{
//
}
}
$xml = " " ;
$xml = $xml . " " ;
// 指定页面编码
header ( " content-type:text/xml; charset=utf-8 " );
echo ( $xml );
}
}
ExtensionList :: pageLoad();
?>
Common
主要应用了正则表达式
代码
php
/* ***********************************************************
公共
吴剑 2010-01-19
*********************************************************** */
class Common
{
// 非空验证
static function IsNon( $str )
{
return true ;
}
// 正整数验证
static function IsInt( $str )
{
$reg = " ^[0-9]+$ " ;
if ( ereg ( $reg , $str ))
{
return true ;
}
else
{
return false ;
}
}
// 分机号格式验证
static function IsExtension( $str )
{
$reg = " ^[0-9]+$ " ;
if ( ereg ( $reg , $str ))
{
return true ;
}
else
{
return false ;
}
}
// Email格式验证
static function IsEmail( $str )
{
$reg = " ^([_a-zA-Z0-9+\.]+@([_a-zA-Z0-9]+\.)+[a-zA-Z0-9]{2,4})?$ " ;
if ( ereg ( $reg , $str ))
{
return true ;
}
else
{
return false ;
}
}
}
?>