站内搜索。
search.php
<?php
/****************************************************
原作者: uchinaboy
特点：无需mysql支持；速度快；无需设置路径，放在哪级目录下，就搜索该目录和子目录；可以
搜索一切文本类型的文件；显示文件相关内容；关键词自动高亮显示。
修改内容：增加了自动分页和风格设置文件。
搜索框代码（请单独存为html文件，如果放在search.php相同目录下，无需修改）：<form
method="post" action="search.php"><input type="text" name="key" size=40 value="">
<input type="submit" value="检索"></form>
****************************************************/
require ("search.inc");
if (function_exists("set_time_limit") && !get_cfg_var('safe_mode')){
set_time_limit(600);}
function get_msg($path) {
global $key, $i;
$handle = opendir($path);
while ($filename = readdir($handle)) {
//echo $path."/".$filename."<br>";
$newpath = $path."/".$filename;
if (is_file($newpath)) {
$fp = fopen($newpath, "r");
$msg = fread($fp, filesize($newpath));
fclose($fp);
match_show($key, $msg, $newpath, $filename);
}
if (is_dir($path."/".$filename) && ($filename != ".") && ($filename != "..")) {
//echo "<BR><BR><BR>".$newpath."<BR><BR><BR>";
get_msg($path."/".$filename);
}
}
closedir($handle);
return $i;
}
function match_show($key, $msg, $newpath, $filename) {
global $ar, $i;
$key = chop($key);
if($key) { $check_type = preg_match("/\.html?$/", $filename);
if($check_type) {$title = getHtmlTitle($msg);}
$msg = preg_replace("/<style>.+<\/style>/is", "", $msg);
$msg = preg_replace("/<[^>]+>/", "", $msg);
$value = preg_match("/.*$key.*/i", $msg, $res);
if($value) {
$res[0] = preg_replace("/$key/i", "<FONT COLOR=\"red\">$key</FONT>", $res[0]);
$k = $res[0];
$k = strrchr($k, "<FONT");
$k = substr($k, 1, 100);
$k = "<FONT COLOR=\"red\">$key<$k";
if($title) {$m = $title;} else {$m = $filename;}
$i++;
$link = $newpath;
$ar[] = "$i.◆<a href=\"$link\">$m</a><BR><BR>" .$k."<BR><br>";
}
}else {
echo "请输入关键词";
exit;
}
}
function getHtmlTitle($msg) {
/* Locate where <TITLE> is located in html file. */
$lBound = strpos($msg, '<title>') + 7; //7 is the lengh of <TITLE>.
if ($lBound < 1)
return;
/* Locate where </TITLE> is located in html file. */
$uBound = strpos($msg, '</title>', $lBound);
if ($uBound < $lBound)
return;
/* Clean HTML and PHP tags out of $title with the madness below. */
$title = ereg_replace("[\t\n\r]", '', substr($msg, $lBound, $uBound -
$lBound));
$title = trim(strip_tags($title));
if (strlen($title) < 1) //A blank title is worthless.
return;
return $title;
}
$i = get_msg(".");
if (empty($page)) $page=1;
$maxresult=($page*20);
$resultcount = count($ar);
if ($resultcount%20==0) $maxpageno=$resultcount/20;
else $maxpageno=floor($resultcount/20)+1;
if ($page>$maxpageno) { $page=$maxpageno; $pagemax=$resultcount-1; $pagemin=max
(0,$result_count-20);}
elseif ($page==1) {$pagemin=0; $pagemax=min($result_count-1,20-1); }
else { $pagemin=min($resultcount-1,20*($page-1)); $pagemax=min($resultcount-
1,$pagemin+20-1); }
$maxresult=min($maxresult,$resultcount);
echo "<p align=\"center\">";
echo "浩园软件检索结果";
echo "</p><hr>";
for ($i=max(0,$maxresult-20); $i<$maxresult; $i++) {
print $ar[$i];
}
echo "<hr><p align=\"center\">";
echo " 已经搜索到了 $resultcount 条信息";
$nextpage=$page+1;
$previouspage=$page-1;
echo " --- [ <a href='search.php?key=$key&page=$nextpage' target='_self'>搜索下 20
个结果</a> ]";
echo " [ <a href='search.php?key=$key&page=$previouspage' target='_self'>返回上 20
个结果</a> ]";
exit;
?>
search.inc文件
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<meta name="GENERATOR" content="Microsoft FrontPage 4.0">
<meta name="ProgId" content="FrontPage.Editor.Document">
<STYLE type=text/css>BODY {
font-family : 宋体;
font-size : 10.5pt;
font-weight : medium;
background : #CCCCFF;
position : absolute
}
P {
FONT-SIZE: 10.5pt
}
TABLE {
FONT-SIZE: 10.5pt
}
TD {
FONT-SIZE: 10.5pt; LETTER-SPACING: 1pt; LINE-HEIGHT: 15pt
}
A:LINK {
color : #000000;;TEXT-DECORATION: none
}
A:VISITED {
color : #000000;;TEXT-DECORATION: none
}
A:HOVER {
color : blue;TEXT-DECORATION: underline
}<!--
a {text-decoration: none}
--></style>
<title>全文检索</title>
<base target="_blank">
</head>
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