PHP源代码共享

源代码

/*
站内全文搜索引擎
作者：yannan
*/

function tree($directory)
{
global $string;

$mydir=dir($directory);
while($file=$mydir->read())
{
if((is_dir("$directory/$file")) AND ($file!=".") AND ($file!=".."))
{
tree("$directory/$file");
}
else
{
//检查文件类型，只搜索.php/html/htm文件
if((strstr($file,".php")==".php")||(strstr($file,".html")==".html")||(strstr($file,".htm")==".htm"))
{
//打开文件
if(!($myfile=fopen($directory."/".$file,"r")))
{
print("file could not be opened");
exit;
}
//搜索文件内容
while(!feof($myfile))
{
//read a line from the file
$myline=fgets($myfile,500);
if(ereg($string,$myline))
{
//输出结果
$path=substr($directory,2);
print("found $string");
print("in print($path."/".$file);
print("\">");
print($directory."/".$file);
print("
\n");
print(strip_tags($myline));
print("
\n");
}
} //endwhile of out put the file
fclose($myfile);

} //endif

} //endelse

} //endwhile

$mydir->close();
} //endfunction

//start the program
print("

\n");
print("搜索关键字:");
print("\n");
print("
\n");
print("

");

if((isset($string)) AND ($string!=""))
{
$root=".";
tree($root);
}

?>