项目第一次版本提交
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12
inclode/code.php
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12
inclode/code.php
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<?php
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//开启会话
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session_start();
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//引入验证码类
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include "vcode.class.php";
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//构造方法
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$vcode = new Vcode(80, 30, 4);
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//将验证码放到sessco
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$_SESSION['code'] = $vcode->getcode();
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//将验证码图片输出
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$vcode->outimg();
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236
inclode/page.class.php
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236
inclode/page.class.php
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<?php
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/**
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* file: page.class.php
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* 完美分页类 Page
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*/
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class Page
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{
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private $total; //数据表中总记录数
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private $listRows; //每页显示行数
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private $limit; //SQL语句使用limit从句,限制获取记录个数
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private $uri; //自动获取url的请求地址
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private $pageNum; //总页数
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private $page; //当前页
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private $config = array(
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'head' => "条记录",
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'prev' => "上一页",
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'next' => "下一页",
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'first' => "首页",
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'last' => "末页"
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); //在分页信息中显示内容,可以自己通过set()方法设置
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private $listNum = 10; //默认分页列表显示的个数
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/**
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* 构造方法,可以设置分页类的属性
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* @param int $total 计算分页的总记录数
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* @param int $listRows 可选的,设置每页需要显示的记录数,默认为25条
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* @param mixed $query 可选的,为向目标页面传递参数,可以是数组,也可以是查询字符串格式
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* @param bool $ord 可选的,默认值为true, 页面从第一页开始显示,false则为最后一页
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*/
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public function __construct($total, $listRows = 25, $query = "", $ord = true)
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{
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$this->total = $total;
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$this->listRows = $listRows;
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$this->uri = $this->getUri($query);
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$this->pageNum = ceil($this->total / $this->listRows);
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/*以下判断用来设置当前面*/
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if (!empty($_GET["page"])) {
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$page = $_GET["page"];
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} else {
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if ($ord)
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$page = 1;
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else
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$page = $this->pageNum;
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}
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if ($total > 0) {
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if (preg_match('/\D/', $page)) {
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$this->page = 1;
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} else {
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$this->page = $page;
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}
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} else {
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$this->page = 0;
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}
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$this->limit = "LIMIT " . $this->setLimit();
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}
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/**
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* 用于设置显示分页的信息,可以进行连贯操作
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* @param string $param 是成员属性数组config的下标
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* @param string $value 用于设置config下标对应的元素值
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* @return object 返回本对象自己$this, 用于连惯操作
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*/
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function set($param, $value)
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{
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if (array_key_exists($param, $this->config)) {
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$this->config[$param] = $value;
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}
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return $this;
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}
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/* 不是直接去调用,通过该方法,可以使用在对象外部直接获取私有成员属性limit和page的值 */
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function __get($args)
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{
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if ($args == "limit" || $args == "page")
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return $this->$args;
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else
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return null;
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}
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/**
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* 按指定的格式输出分页
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* @param int 0-7的数字分别作为参数,用于自定义输出分页结构和调整结构的顺序,默认输出全部结构
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* @return string 分页信息内容
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*/
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function fpage()
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{
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$arr = func_get_args();
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$html[0] = "<li><a>共<b>{$this->total}</b>{$this->config["head"]}</a></li>";
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$html[1] = "<li><a>本页<b>" . $this->disnum() . "</b>条</a></li>";
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$html[2] = "<li><a>本页从<b>{$this->start()}-{$this->end()}</b>条</a></li>";
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$html[3] = "<li><a>当前在<b>{$this->page}/{$this->pageNum}</b>页</a></li>";
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$html[4] = $this->firstprev();
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$html[5] = $this->pageList();
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$html[6] = $this->nextlast();
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$html[7] = $this->goPage();
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$fpage = ' <div class="am-fr"><ul class="am-pagination tpl-pagination">';
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if (count($arr) < 1)
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$arr = array(0, 1, 2, 3, 4, 5, 6, 7);
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for ($i = 0; $i < count($arr); $i++)
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$fpage .= $html[$arr[$i]];
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$fpage .= '</ul></div>';
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return $fpage;
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}
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/* 在对象内部使用的私有方法,*/
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private function setLimit()
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{
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if ($this->page > 0)
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return ($this->page - 1) * $this->listRows . ", {$this->listRows}";
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else
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return 0;
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}
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/* 在对象内部使用的私有方法,用于自动获取访问的当前URL */
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private function getUri($query)
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{
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$request_uri = $_SERVER["REQUEST_URI"];
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$url = strstr($request_uri, '?') ? $request_uri : $request_uri . '?';
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if (is_array($query))
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$url .= http_build_query($query);
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else if ($query != "")
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$url .= "&" . trim($query, "?&");
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$arr = parse_url($url);
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if (isset($arr["query"])) {
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parse_str($arr["query"], $arrs);
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unset($arrs["page"]);
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$url = $arr["path"] . '?' . http_build_query($arrs);
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}
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if (strstr($url, '?')) {
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if (substr($url, -1) != '?')
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$url = $url . '&';
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} else {
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$url = $url . '?';
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}
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return $url;
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}
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/* 在对象内部使用的私有方法,用于获取当前页开始的记录数 */
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private function start()
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{
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if ($this->total == 0)
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return 0;
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else
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return ($this->page - 1) * $this->listRows + 1;
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}
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/* 在对象内部使用的私有方法,用于获取当前页结束的记录数 */
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private function end()
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{
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return min($this->page * $this->listRows, $this->total);
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}
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/* 在对象内部使用的私有方法,用于获取上一页和首页的操作信息 */
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private function firstprev()
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{
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if ($this->page > 1) {
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$str = "<li><a href='{$this->uri}page=1'>{$this->config["first"]}</a></li>";
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$str .= "<li><a href='{$this->uri}page=" . ($this->page - 1) . "'>{$this->config["prev"]}</a></li>";
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return $str;
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}
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}
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/* 在对象内部使用的私有方法,用于获取页数列表信息 */
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private function pageList()
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{
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$linkPage = "";
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$inum = floor($this->listNum / 2);
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/*当前页前面的列表 */
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for ($i = $inum; $i >= 1; $i--) {
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$page = $this->page - $i;
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if ($page >= 1)
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$linkPage .= "<li><a href='{$this->uri}page={$page}'>{$page}</a></li>";
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}
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/*当前页的信息 */
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if ($this->pageNum > 1)
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$linkPage .= "<li class=\"am-active\"><a href=\"#\">{$this->page}</a></li>";
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/*当前页后面的列表 */
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for ($i = 1; $i <= $inum; $i++) {
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$page = $this->page + $i;
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if ($page <= $this->pageNum)
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$linkPage .= "<li><a href='{$this->uri}page={$page}'>{$page}</a></li>";
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else
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break;
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}
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$linkPage .= '';
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return $linkPage;
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}
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/* 在对象内部使用的私有方法,获取下一页和尾页的操作信息 */
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private function nextlast()
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{
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if ($this->page != $this->pageNum) {
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$str = "<li><a href='{$this->uri}page=" . ($this->page + 1) . "'>{$this->config["next"]}</a></li>";
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$str .= "<li><a href='{$this->uri}page=" . ($this->pageNum) . "'>{$this->config["last"]}</a></li>";
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return $str;
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}
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}
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/* 在对象内部使用的私有方法,用于显示和处理表单跳转页面 */
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private function goPage()
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{
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if ($this->pageNum > 1) {
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return ' <input style="width:20px;height:17px !important;height:18px;border:1px solid #CCCCCC;" type="text" onkeydown="javascript:if(event.keyCode==13){var page=(this.value>' . $this->pageNum . ')?' . $this->pageNum . ':this.value;location=\'' . $this->uri . 'page=\'+page+\'\'}" value="' . $this->page . '"><input style="cursor:pointer;width:25px;height:18px;border:1px solid #CCCCCC;" type="button" value="GO" onclick="javascript:var page=(this.previousSibling.value>' . $this->pageNum . ')?' . $this->pageNum . ':this.previousSibling.value;location=\'' . $this->uri . 'page=\'+page+\'\'"> ';
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}
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}
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/* 在对象内部使用的私有方法,用于获取本页显示的记录条数 */
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private function disnum()
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{
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if ($this->total > 0) {
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return $this->end() - $this->start() + 1;
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} else {
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return 0;
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}
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}
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}
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132
inclode/vcode.class.php
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132
inclode/vcode.class.php
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@@ -0,0 +1,132 @@
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<?php
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class Vcode
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{
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private $width; //宽
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private $height; //高
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private $num; //数量
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private $code; //验证码
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private $img; //图像的资源
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//构造方法, 三个参数
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function __construct($width = 80, $height = 20, $num = 4)
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{
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$this->width = $width;
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$this->height = $height;
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$this->num = $num;
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$this->code = $this->createcode(); //调用自己的方法
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}
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//获取字符的验证码, 用于保存在服务器中
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function getcode()
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{
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return $this->code;
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}
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//输出图像
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function outimg()
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{
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//创建背景 (颜色, 大小, 边框)
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$this->createback();
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//画字 (大小, 字体颜色)
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$this->outstring();
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//干扰元素(点, 线条)
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$this->setdisturbcolor();
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//输出图像
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$this->printimg();
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}
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//创建背景
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private function createback()
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{
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//创建资源
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$this->img = imagecreatetruecolor($this->width, $this->height);
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//设置随机的背景颜色
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$bgcolor = imagecolorallocate($this->img, rand(225, 255), rand(225, 255), rand(225, 255));
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//设置背景填充
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imagefill($this->img, 0, 0, $bgcolor);
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//画边框
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$bordercolor = imagecolorallocate($this->img, 0, 0, 0);
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imagerectangle($this->img, 0, 0, $this->width - 1, $this->height - 1, $bordercolor);
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}
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//画字
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private function outstring()
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{
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for ($i = 0; $i < $this->num; $i++) {
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$color = imagecolorallocate($this->img, rand(0, 128), rand(0, 128), rand(0, 128));
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$fontsize = rand(3, 5); //字体大小
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$x = 3 + ($this->width / $this->num) * $i; //水平位置
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$y = rand(0, imagefontheight($fontsize) - 3);
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//画出每个字符
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imagechar($this->img, $fontsize, $x, $y, $this->code{$i}, $color);
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}
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}
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//设置干扰元素
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private function setdisturbcolor()
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{
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//加上点数
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for ($i = 0; $i < 1; $i++) {
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$color = imagecolorallocate($this->img, rand(0, 255), rand(0, 255), rand(0, 255));
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imagesetpixel($this->img, rand(1, $this->width - 2), rand(1, $this->height - 2), $color);
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}
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//加线条
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for ($i = 0; $i < 1; $i++) {
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$color = imagecolorallocate($this->img, rand(0, 255), rand(0, 128), rand(0, 255));
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imagearc($this->img, rand(-10, $this->width + 10), rand(-10, $this->height + 10), rand(30, 300), rand(30, 300), 55, 44, $color);
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}
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}
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//输出图像
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private function printimg()
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{
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if (imagetypes() & IMG_GIF) {
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header("Content-type: image/gif");
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imagegif($this->img);
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} elseif (function_exists("imagejpeg")) {
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header("Content-type: image/jpeg");
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imagegif($this->img);
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} elseif (imagetypes() & IMG_PNG) {
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header("Content-type: image/png");
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imagegif($this->img);
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} else {
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die("No image support in this PHP server");
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}
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}
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//生成验证码字符串
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private function createcode()
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{
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$codes = "3456789abcdefghijkmnpqrstuvwxyABCDEFGHIJKLMNPQRSTUVWXY";
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$code = "";
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for ($i = 0; $i < $this->num; $i++) {
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$code .= $codes{rand(0, strlen($codes) - 1)};
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}
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return $code;
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}
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//用于自动销毁图像资源
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function __destruct()
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{
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imagedestroy($this->img);
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}
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}
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Reference in New Issue
Block a user