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标题: 代码学习 [打印本页]

作者: Nothing 时间: 2007-7-10 09:52 标题: 代码学习

<?php
// 常位于函数文件的开头，禁止在url中直接访问该文件

if (eregi("function.php",$_SERVER['PHP_SELF'])) {
Header("Location: ../index.php");
die();
}

//返回安全字符串

function getSafeValue($value)
{
if (! get_magic_quotes_gpc()) {
      return strip_tags(addslashes($value));
} else {
      return strip_tags($value);
}
}
/*
get_magic_quotes_gpc 函数说明

取得 PHP 环境变量 magic_quotes_gpc 的值。

本函数取得 PHP 环境配置的变量 magic_quotes_gpc (GPC, Get/Post/Cookie) 值。返回 0 表示关闭本功能；返回 1 表示本功能打开。当 magic_quotes_gpc 打开时，所有的 ' (单引号), " (双引号), \ (反斜线) and 空字符会自动转为含有反斜线的溢出字符。

参考资料: http://www.cycoo.net/study/php/function.php-get_magic_quotes_gpc.htm

*/

// 将prefix分成2部分，最后一位数字代表高度使用的CSS样式，其余的部分代表正则Pattern

// 常用于关键字高亮显示

function highlight(& $item, $key, $prefix) {
$prefix1 = preg_quote(substr($prefix, 0, strlen($prefix) -1), '/');
$prefix2 = intval(substr($prefix, -1));
   $item = preg_replace("/$prefix1/is", "<span class='regSearch$prefix2'>\$0</span>", $item);
}

// 用于URL改写，把url中的问号'?'和与符号'&'改写成斜杆'/'、'+'、','、'-'等字符

function parse_url_path()
{
  /* 此方法仅用于apache服务器 */
  if(isset($_SERVER[PATH_INFO])) {//若PATH_INFO可用，注意apache2默认不可用

$query_string = $_SERVER[PATH_INFO];
  } else {
Return '';
  }
  //strip '.html','.htm'

  $query_string = str_replace('.html', '', $query_string);
  $query_string = str_replace('.htm', '', $query_string);
  if(empty($query_string)) {
Return '';
  } else {
$args = split("/", substr($query_string,1)); //分裂成数组

Return $args;
  }
}

//专用函数，只用于将brand按字母排序

function GroupLetter($products,$group,$join, $categories_name = '') {
  $out = array();
  if(! $products) {
      Return array();
  }
  foreach($products as $v) {
$key = $v[$group];
$value = $v[$join];
$out[$key][$join][] = "$value";
$out[$key]['models_id'][] = $v['models_id'];
  }
  $tmp_category_path = getCategoryPath($categories_name);
  $filename = $tmp_category_path['modelsFile'];
  $result = array();
  foreach($out as $k=>$v) {
//定义brand的链接

$numBrand = count($v[$join]);
for ($i=0; $i<$numBrand; $i++) {
      $href[$k][] = "<a href=\"" . $filename . "/" . convertFileName($v['models_brand'][$i]) . '/' . $v['models_id'][$i] . REWRITE_FILE_EXT2 . "\" class=\"brand\">" . $v[$join][$i] . "</a>";
}
$result[] = array($group => $k, $join => $href[$k]);

  }
  return $result;
}

// 获得字符串的Ascii值

function AsciiCode($name) {
if(empty($name)) {
      Return '';
}
$name = strval($name);
$convert_name = '';
$length = strlen($name);
for($i=0; $i<$length; $i++) {
      $convert_name[] = ord($name[$i]);
}
$name = implode("", $convert_name);
Return $name;
}

// 判断用户是否已经登录

function checkUser($keywords)
{
  $key  = $_SERVER['SERVER_NAME'] . dirname($_SERVER["REQUEST_URI"]);
  $pass = crc32(md5($key));
  $keywords = base64_decode($keywords);
  if($keywords == $pass)
  {
Return true;
  } else
  {
   Return false;
  }

}

/**
*此函数对指定的一个二维数组$products中$group进行分类筛选，将相同$group的$join值连接在一起
*@Parameters:$products,$group,$join,其中$products包含了要操作的数据
*@Return:返回一个二维数组$result，数组包括两个键名:$group,$join
*/
function GroupBrand($products,$group,$join) {
  $out = array();
  if(! $products) {
      Return array();
  }
  foreach($products as $v) {
$key = strtoupper($v[$group]);
$value = $v[$join];
/*
if(isset($out[$key]))
   $out[$key] .= ", $value";
else
   $out[$key] = "$value";

*/
$out[$key][] = "$value";
  }
  $result = array();
  foreach($out as $k=>$v)
$result[] = array($group => $k, $join => $v);

  return $result;
}

/**
* 同上，但以，分隔
*/
function GroupBrand2($products,$group,$join) {
  $out = array();
  if(! $products) {
      Return array();
  }
  foreach($products as $v) {
$key = strtoupper($v[$group]);
$value = $v[$join];
if(isset($out[$key]))
   $out[$key] .= ",$value";
else
   $out[$key] = "$value";

  }
  $result = array();
  foreach($out as $k=>$v)
$result[] = array($group => $k, $join => $v);

  return $result;
}

/**
*此函数对指定的一个二维数组$products中$group进行筛选，将相同$group的$join值只留一个
*@Parameters:$products,$group,$join,其中$products包含了要操作的数据
*@Return:返回一个二维数组$result，数组包括两个键名:$group,$join
*/

function StripRepeated($products,$group,$join) {
  $out = array();
  if(!$products) {
      Return array();
  }
foreach($products as $v) {
      $key = $v[$group];
      $value = $v[$join];
      if(! isset($out[$key]))
      {
         $out[$key] = "$value";
      }
}
$result = array();
foreach($out as $k=>$v)
   $result[] = array($group => $k, $join => $v);

return $result;
}

/**
  * send a mail
  * this function only can send a mail without attachment file
  * it must be support by mimie class
  * @sendtype  => (smtp,mail);
  */
  function SendMail($to = SUPPORTER_EMAIL, $from = 'unnamed', $subject, $message, $sendtype = 'smtp')
  {
   global $class_mail;
$domain = $_SERVER['REMOTE_ADDR'];
$send_date = strftime(DATE_FORMAT_LONG);
$send_time = strftime(DATE_TIME_FORMAT);
if(empty($subject) || !isset($subject)) {
      $subject = "a email  from : $domain at " . $send_date . " " . $send_time;
}
$mailmessage  = $message . "<hr>this email is from :";
$mailmessage .= $domain . " at " . $send_date . " " . $send_time;
$text = $mailmessage;
$html = $mailmessage;
$class_mail->setHtml($html, $text);
$class_mail->setReturnPath($to);
$class_mail->setFrom($from);
$class_mail->setBcc(CC_EMAIL);
$class_mail->setSubject($subject);
$result = $class_mail->send(array($to), $sendtype);
if (! $result) {
   Show_Error_Message("Mail send error", $class_mail->errors);
}
  }

// Redirect page

function Redirect_Page($url = "/") {
$location="<script language=\"javascript\">window.location.href='" .$url. "';</script>";
echo $location;
return;
}

// Alert Window Message

function Alert_Message($message = "") {
echo "<script language=javascript> alert('" .$message. "');</script>";
return;
}

//Show user define information in window

function Show_Message($title, $message)
{
$title = htmlspecialchars($title);
$message = htmlspecialchars($message);
$messageTable  = "<table border=\"0\" width=\"80%\" cellspacing=\"0\" cellpadding=\"0\" align=\"center\">";
$messageTable .= "<tr>";
$messageTable .= "<td width=\"100%\" height=\"14\" class=\"infoBoxHeading\">";
$messageTable .= $title;
$messageTable .= "</td></tr></table>";
$messageTable .= "<table border=\"0\" width=\"80%\" cellspacing=\"0\" cellpadding=\"1\" class=\"infoBox\" align=\"center\">";
$messageTable .= "<tr>";
$messageTable .= "<td><table border=\"0\" width=\"100%\" cellspacing=\"0\" cellpadding=\"3\" class=\"infoBoxContents\">";
$messageTable .= "<tr><td><img src=\"/images/pixel_trans.gif\" border=\"0\" width=\"100%\" height=\"1\"></td></tr>";
$messageTable .= "<tr><td align=\"center\" class=\"boxText\">";
$messageTable .= $message;
$messageTable .= "</td></tr>";
$messageTable .= "<tr><td><img src=\"/images/pixel_trans.gif\" border=\"0\" width=\"100%\" height=\"1\"></td></tr></table></td></tr></table>";
echo($messageTable);
return;
}

/**
  * Show Error Message and Send a email to the supporter of the website.
  */

function Show_Error_Message($errorTitle, $errorMessage, $errorFile = __FILE__, $errorLine = __LINE__)
{
$errorFile = basename($errorFile);
$errorTitle = htmlspecialchars($errorTitle);
$errorMessage = htmlspecialchars($errorMessage);
$errorTable  = "<table border=\"0\" width=\"600\" cellspacing=\"0\" cellpadding=\"0\" align=\"center\">";
$errorTable .= "<tr>";
$errorTable .= "<td width=\"100%\" height=\"14\" style=\"font-family:Verdana, Arial, sans-serif;font-size: 10px;  font-weight: bold;  background: #EBF3E6; color: #000000;\">  ";
$errorTable .= $errorTitle;
$errorTable .= "</td></tr></table>";
$errorTable .= "<table border=\"0\" width=\"600\" cellspacing=\"0\" cellpadding=\"1\" style=\"background: #FFFFFF;  border: 1px solid #EBF3E6;  border-spacing: 0px;\" align=\"center\">";
$errorTable .= "<tr>";
$errorTable .= "<td><table border=\"0\" width=\"100%\" cellspacing=\"0\" cellpadding=\"3\" class=\"infoBoxContents\">";
$errorTable .= "<tr><td><img src=\"/images/pixel_trans.gif\" border=\"0\" width=\"100%\" height=\"1\"></td></tr>";
$errorTable .= "<tr><td align=\"center\" style=\"font: 11px Verdana, Arial, Helvetica, sans-serif; color: #000000;\">";
$errorTable .= "<strong>ERROR:</strong> $errorMessage";
$errorTable .= "<p>Error occurred on line $errorLine of file $errorFile</p>";
$errorTable .= "<P>An email had sent to the web supporter.</p>";
$errorTable .= "<P><a href=\"/\"><img src=\"/images/cart/button_continue.gif\" border='0'></a></p>";
$errorTable .= "</td></tr>";
$errorTable .= "<tr><td><img src=\"/images/pixel_trans.gif\" border=\"0\" width=\"100%\" height=\"1\"></td></tr></table></td></tr></table>";
echo($errorTable);
$errorTable .= sprintf('<p>%s</p>', $_SERVER["REQUEST_URI"]);
//send mail to supporter

SendMail(WEBMASTER_EMAIL, $_SERVER['REMOTE_ADDR'], $errorTitle, $errorTable);
//die();

}

?>

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