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简单站内HTML文件搜索程序_PHP

时间:2021-07-01 10:21:17 帮助过:8人阅读

  自己写来简单的搜索自己电脑上的技术资料的. 大概的思路就是寻找指定目录下的文本, 然后如果有与关键字相匹配的数据就把文件名返回, 最后把所有搜索结果显示出来. 显示结果类似于baidu/google, 呵呵, 这个是纯粹为了好玩.

  程序代码:

/**
* 文件: search.php
* 功能: 搜索指定目录下的HTML文件
* 创建: 2005-9-23
* 作者: heiyeluren
*/


/* 基本函数 */

//获取目录下文件函数
function getFile($dir)
{
$dp = opendir($dir);
$fileArr = array();
while (!false == $curFile = readdir($dp)) {
if ($curFile!="." && $curFile!=".." && $curFile!="") {
if (is_dir($curFile)) {
$fileArr = getFile($dir."/".$curFile);
} else {
$fileArr[] = $dir."/".$curFile;
}
}
}
return $fileArr;
}

//获取文件内容
function getFileContent($file)
{
if (!$fp = fopen($file, "r")) {
die("Cannot open file $file");
}
while ($text = fread($fp, 4096)) {
$fileContent .= $text;
}
return $fileContent;
}

//搜索指定文件
function searchText($file, $keyword)
{
$text = getFileContent($file);
if (preg_match("/$keyword/i", $text)) {
return true;
}
return false;
}

//搜索出文章的标题
function getFileTitle($file, $default="None subject")
{
$fileContent = getFileContent($file);
$sResult = preg_match("/.*<\/title>/i", $fileContent, $matchResult);<BR> $title = preg_replace(array("/(<title>)/i","/(<\/title>)/i"), "", $matchResult[0]);<BR> if (empty($title)) {<BR> return $default;<BR> } else {<BR> return $title;<BR> }<BR>}</P> <P>//获取文件描述信息<BR>function getFileDescribe($file,$length=200, $default="None describe")<BR>{<BR> $metas = get_meta_tags($file);<BR> if ($meta['description'] != "") {<BR> return $metas['description'];<BR> }<BR> $fileContent = getFileContent($file);<BR> preg_match("/(<body.*<\/body>)/is", $fileContent, $matchResult);<BR> $pattern = array("/(<[^\x80-\xff] >)/i","/(<input.*>) /i", "/() /i", "/(<img.*>) /i", "/([<script.*>]) .*([<\/script>]) /i","/&/i","/"/i","/'/i", "/\s/");<BR> $description = preg_replace($pattern, "", $matchResult[0]);<BR> $description = mb_substr($description, 0, $length)." ...";</P> <P> return $description;<BR>}</P> <P>//加亮搜索结果中的关键字<BR>function highLightKeyword($text, $keyword, $color="#C60A00")<BR>{<BR> $newword = "<font color=$color>$keyword</font>";<BR> $text = str_replace($keyword, $newword, $text);<BR> return $text;<BR>}</P> <P>//获取文件大小(KB)<BR>function getFileSize($file)<BR>{<BR> $filesize = intval(filesize($file)/1024)."K";<BR> return $filesize;<BR>}</P> <P>//获取文件最后修改的时间<BR>function getFileTime($file)<BR>{<BR> $filetime = date("Y-m-d", filemtime($file));<BR> return $filetime;<BR>}</P> <P>//搜索目录下所有文件<BR>function searchFile($dir, $keyword)<BR>{<BR> $sFile = getFile($dir);<BR> if (count($sFile) <= 0) {<BR> return false;<BR> }<BR> $sResult = array();<BR> foreach ($sFile as $file) {<BR> if (searchText($file, $keyword)) {<BR> $sResult[] = $file;<BR> }<BR> }<BR> if (count($sResult) <= 0) {<BR> return false;<BR> } else {<BR> return $sResult;<BR> }<BR>}</P> <P><BR>/* 测试代码 */</P> <P>//指定要搜索的目录<BR>$dir = "./php_Linux";<BR>//要搜索的关键字<BR>$keyword = "sendmail";</P> <P>$fileArr = searchFile($dir, $keyword);<BR>$searchSum = count($fileArr);</P> <P>echo "搜索关键字: <b>$keyword</b> 搜索目录: <b>$dir</b> 搜索结果: <b>$searchSum</b><br><hr size=1><br>";</P> <P>if ($searchSum <= 0) { <BR> echo "没有搜索到任何结果";<BR>} else {<BR> foreach ($fileArr as $file) {<BR> echo "". highLightKeyword(getFileTitle($file), $keyword) .<BR> " - ".getFileSize($file)." 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