[PHP]用代码说话:怎么写一个类

nbxmedia · 发表于 2005-5-26 16:15:14

[PHP]
<?php
/*
PAGE CLASS
Copyright (C) 2004-2005 Harry Wang
GNU General Public License 321
This program is free software; you can
redistribute it and/or modify it under the
terms of the GNU General Public License as
published by the Free Software Foundation;
either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that
it will be useful, but WITHOUT ANY WARRANTY;
without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU
General Public License along with this
program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330,
Boston, MA 02111-1307 USA
*/
/**
* 數據庫分頁?
* 這個數據庫分頁?可以使用在帶有ADODB的數據庫中
* @author Weizhen Wang <harry34010493@gmail.com>
* @version $Id: page.inc.php,v 1.9 2005/03/24 19:38:21 justin Exp $
* @example  /inc/example/page.example.php
* 使用簡介:
* $p = new ShowPage(根据?($DB), 表名字, 分頁條數, 具体sql語句(可選)); //建立新對象
* $p->SetPageVar(pagecount); //設置翻頁的標示，默認是'p'
* $pVar = $p->GetPageVar(); //返回當前PageVar
* $p->GetTotalPageArray();    //生成下拉菜單
* $p->GetTotalPage();       //返回總頁數
* $p->GetLeftSide(); //返回向左的箭頭
* $p->GetRightSide(); //返回向右的箭頭
* $p->GetCurrentPage(); //返回當前頁面
* $p->GetLimit(); //返回每頁顯示條數
* $p->GetRowFrom(); //返回Select語句用的當前Row的位置 E.G."SELECT * FROM SupplierLogin LIMIT " . $p->GetRowFrom() . ", " . $p->GetLimit();
* $p->SetVar(); //設置同時需要傳送的參數
*/
class ShowPage
{
/**
   * 左翻頁
   * @var string
   */
var $outputLeftSide;

/**
   * 右翻頁
   * @var string
   */
var $outputRightSide;
var $file;

/**
   * 翻頁參數
   * @var string
   */
var $pVar = "p";

/**
   * 當前頁
   * @var int
   */
var $curr;
var $varstr;
var $tPage;

/**
   * 數據庫對象
   * @var DB
   */
var $DB;

/**
   * 數據庫表名
   * @var string
   */
var $table;

/**
   * 每頁顯示的數據條數
   * @var string
   */
var $limit;

/**
   * SQL語句
   * @var string
   */
var $sqlQuery;
var $tPageArray;
var $total;
var $tRow;
###############################################################################
/**
   * 構造函數
   * @param  db $DB 數據庫對象,默認是ADODB
   * @param string $table 數據庫表名
   * @param int $limit 每頁顯示的數據條數
   * @param string $sqlQuery SQL語句（可選）
   * @todo 完成其他DB對象
   */
function ShowPage($DB, $table, $limit, $sqlQuery = "") {
// $DB is a object contain some method access to mySql
// $table is the table name you want to access (if you want to access only some part of the table you should use the fourth parameter instead)
// $limit is the page limit value
// $sqlQuery must be a SQL Query (E.G. SELECT * FROM table WHERE id like '100';)
$this->DB = $DB;
$this->table = $table;
$this->limit = $limit;
$this->sqlQuery = $sqlQuery;

$tmpGET = $_GET;
unset($tmpGET[$this->pVar]);
$this->setVar($tmpGET);

if ($sqlQuery == "") {
$tmpQuery = "SELECT * FROM $this->table";
}
else {
$tmpQuery = $sqlQuery;
}
//adodb hack start
$rs =& $DB->Execute($tmpQuery) or die($DB->ErrorMsg());
//$tPage =$this->total= $DB->Affected_Rows( );
$tPage = $rs->RecordCount();
      $this->tRow = $tPage;
//adodb hack end
$this->tPage = ceil($tPage / $this->limit); // caculate the total page
if ($this->tPage > 0) {
// build an array which contain all page number (E.G. array(1, 2, 3, 4))
for ($i = 1; $i < $this->tPage + 1; $i++) {
$this->tPageArray[] = $i;
}
}
else {
$this->tPageArray[] = 0;
}
}

/**
   * 設置翻頁參數
   * @param string $pvar  翻頁參數
   */
function SetPageVar($pvar = 'p')  {
      // set type turnpage parameter (E.G. http://www.aa.com/index.php?p=1)
$this->pVar = $pvar;
}

/**
   * 返回總行數
   * @return  int
   */

function GetTotalRow() {
return $this->tRow;
}

/**
   * 返回翻頁參數
   * @return string
   */
function GetPageVar() {
return $this->pVar;
}

/**
   * 返回當前頁數
   * @return int
   */
function GetCurrentPage() {
return  $_GET[$this->pVar];
}

/**
   * 返回總頁數數組
   * @return array
   */
function GetTotalPageArray() {
return $this->tPageArray;
}

/**
   * 返回總頁數
   * @return int
   */
function GetTotalPage() {
return $this->tPage;
}

/**
   * 返回每頁顯示條數
   * @return int
   */
function GetLimit() {
return $this->limit;
}

/**
   * 返回數據行數
   * @return  int
   */
function GetRowFrom() {
if ($this->GetCurrentPage() <= 1) {
return 0;
}
else {
return ($this->GetCurrentPage() - 1) * $this->GetLimit();
}
}

/**
   * 返回朝左翻
   * @return  string
   */
function GetLeftSide() {
$current = $_GET[$this->pVar];

if (!$current) {
$current = 1;
}

if ($current<1) {
$current = 1;
}

if ($current>$this->tPage) {
$current = $this->tPage;
}

if ($this->tPage > 1) {
if ($current > 10) {
$this->outputLeftSide = '<a href='.$this->file.'?'.$this->pVar.'='.($current-10).($this->varstr).' title="

revious 10 Pages"><<<</a> ';
}
if ($current > 1) {
$this->outputLeftSide .= '<a href='.$this->file.'?'.$this->pVar.'='.($current-1).($this->varstr).' title="

revious Page"><<</a> ';
}
}

return str_replace('"', "'", $this->outputLeftSide);
}

/**
   * 返回朝右翻
   * @return  string
   */
function GetRightSide() {
$current = $_GET[$this->pVar];

if (!$current) {
$current = 1;
}

if ($current>$this->tPage) {
$current = $this->tPage;
}

if ($current<1) {
$current = 1;
}

if ($this->tPage > 1) {
if ($current<$this->tPage) {
$this->outputRightSide = '<a href='.$this->file.'?'.$this->pVar.'='.($current+1).($this->varstr).' title="Next Page">>></a> ';
}
         if ($this->tPage>10 && ($this->tPage-$current)>=10 ) {
$this->outputRightSide .= '<a href='.$this->file.'?'.$this->pVar.'='.($current+10).($this->varstr).' title="Next 10 Page">>>></a>';
}
}

return str_replace('"', "'", $this->outputRightSide);
}

/**
   * 返回一個完整的翻頁選項
   * 包含了向左翻(<< <), 直接選擇頁面數字，向右翻(> >>), 和所需要的Javascript
   * @return string
   */
function GetFullSide() {
$sLeftSide = $this->GetLeftSide();
$sRightSide = $this->GetRightSide();
$sCenter = "<select onChange='fnJump(this.value)' name='select'>\n";
$pages = $this->GetTotalPageArray();
foreach($pages as $page) {
$selected = "";
if($page == $this->GetCurrentPage())$selected = "selected";
$sCenter .= " <option value=\"$page\" $selected>$page</option>\n";
}
$sCenter .= "</select>\n";

$sScript = $this->GetTurnPageScript();

return ($sLeftSide ."\n". $sCenter ."\n". $sRightSide ."\n". $sScript);
} // end func

/**
   * 返回Sql語句
   * @return string
   */
function GetNewSql() {
return $this->sqlQuery . " LIMIT " . $this->GetRowFrom() . ", " . $this->GetLimit();
} // end func

/**
   * 返回翻頁時所需的Javascript
   * @return string
   */
function GetTurnPageScript() {
return "<SCRIPT LANGUAGE=\"JavaScript\">\n" .
"\n" .
"</SCRIPT>\n";
} // end func

/**
   * 設置其它參數
   * 設置翻頁時需要通過用GET方法一同傳送過去的其他參數
   * @param  array $data
   */
function setVar($data) {
// set the turnpage addition value need to transfer by get mode
foreach ($data as $k=>$v) {
$this->varstr.='&'.$k.'='.urldecode($v);
}
}
}

?>
[/PHP]

cg111 · 发表于 2005-5-26 21:56:09

好东西，学习中！

lexrus · 发表于 2005-5-28 09:38:17

$tmpQuery = "SELECT * FROM $this->table";
我觉得这种放在字符串里的多个单词的变量, 最好能加上花括号:
$tmpQuery = "SELECT * FROM ${this->table}";

cg111 · 发表于 2005-5-28 10:48:56

楼上懂不懂？不懂不要瞎说！$tmpQuery = "SELECT * FROM $this->table";中Sthis是一个对象，table是$this对象的属性，你用花括号把this->table包起来PHP如何解析？？？

lexrus · 发表于 2005-5-28 11:44:35

sorry, 我是php初学者, 有点想当然了~ 刚才试了一下, 确实不能这样写.
请问要怎么解决连续字符串的问题呢? 只能通过点号连接么? 如:
$var1 = "nospacetofix$this->tablethesubfixishere";
只能写成:
$var1 = "nospacetofix". $this->table . "thesubfixishere";
吗?

nbxmedia · 发表于 2005-5-28 13:56:00

Post by lexrus
sorry, 我是php初学者, 有点想当然了~ 刚才试了一下, 确实不能这样写.
请问要怎么解决连续字符串的问题呢? 只能通过点号连接么? 如:
$var1 = "nospacetofix$this->tablethesubfixishere";
只能写成:
$var1 = "nospacetofix". $this->table . "thesubfixishere";
吗?

是$var1 = "nospacetofix{$this->table}thesubfixishere";

nbxmedia · 发表于 2005-5-28 14:06:45

继续,这个是一个发送邮件的class,需要pear的Mail和mail_Mime class
支持html和多个mime_part,当然还有附件

[PHP]
<?php
/**
* file name here
*
* discription here
*
*
* @author: nbxmedia <nbxmedia@163.com>
* @version: $Id$
*/

//require pear class Mail and Mail_Mime
include_once("Mail.php");
include_once("Mail/mime.php");
include_once("Mail/mimePart.php");

//rebuild this class for using pear
class ComposeMail
{
//mail headers
var $headers = array();

//charset
var $charset = "utf-8";

//mail body
var $body = "";
var $textbody = "";
var $htmlbody = "";

//mail receiver
var $to = "";

//form name
var $from_name = "";
var $from_addr = "";

//smtp access
var $smtp = array();

//sendmail function
var $send_type = "mail";

//mail
var $mime;

//constractor
function ComposeMail($to, $subject, $charset="utf-8")
{
$this->to = $to;
$this->headers['Subject'] = $subject;
$this->charset = $charset;

$this->mime =& new Mail_mime();
}

//set return-path
function SH_ReturnPath($rp)
{
$this->headers['Return-Path'] = "<$rp>";
}

//set Envelope-To
function SH_EnvelopeTo($et)
{
$this->headers['Envelope-to'] = $et;
}

/*
This function sets the FromName header (internal)
*/
function SH_FromName($fromName)
{
$this->from_name=$fromName;
}

/*
This function sets the FromAddr header (internal)
*/
function SH_FromAddr($fromAddr)
{
$this->from_addr=$fromAddr;
}

//html body
function addHtmlBodyPart($html)
{
$meta = "<meta http-equiv=\"Content-Type\" content=\"text/html; charset={$this->charset}\">\n";

if(strpos($html, $meta) === false)$html = $meta.$html;
$this->mime->setHTMLBody($html);

}

//text body
function addTextPlainBodyPart($text)
{
$this->mime->setTXTBody($text);
}

//add attach from data or file
function addAttachFromFile($fullname, $ftype='application/octet-stream')
{
$this->mime->addAttachment($fullname, $ftype);
}

function addAttachFromData($data, $dname, $dtype='application/octet-stream', $dispos="")
{
$this->mime->addAttachment($data, $dtype, $dname, false);
}

//complete and send message
function BuildAndSendMessage()
{
$this->headers['From'] = $this->from_name."<$this->from_addr>";
$param["text_charset"] = $this->charset;
$param["html_charset"] = $this->charset;
$param["head_charset"] = $this->charset;
$param["html_encoding"] = "base64";

$this->body = $this->mime->get($param);
$this->headers = $this->mime->headers($this->headers);

$mail =& Mail::factory($this->send_type, $this->smtp);
$mail->send($this->to, $this->headers, $this->body);
}

}

?>
[/PHP]

		自动登录	找回密码
密码			注册