My First Time For PHP

程序员文章站 2022-05-09 09:27:22

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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();
}

}

?>

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 . " " ;
$xml = $xml . " " ;
$xml = $xml . " " . $guidID . " " ;
$xml = $xml . " " ;
$xml = $xml . " " ;
$xml = $xml . " " . $result . " " ;
$xml = $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 . " " . $row [ " etn " ] . " " ;
$etn = $etn . " " . $row [ " grp_id " ] . " " ;
$etn = $etn . " " . $row [ " email " ] . " " ;
$etn = $etn . " " . $row [ " nm " ] . " " ;
$etn = $etn . " " ;
$etn = $etn . " " . $row [ " state " ] . " " ;
$etn = $etn . " " . $row [ " reg_time " ] . " " ;
$etn = $etn . " " ;
}
}
}
catch ( Exception $e )
{
//
}
}

$xml = " " ;
$xml = $xml . " " ;
$xml = $xml . " " ;
$xml = $xml . " " . $guidID . " " ;
$xml = $xml . " " ;
$xml = $xml . " " . $etn . " " ;
$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 ;
}
}
}

?>

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