PHP源码学习：站内搜索HTML版

//require("config.inc.php");

function get_msg(＄path) {
global ＄key, ＄i;
＄handle = opendir(＄path);
while (＄filename = readdir(＄handle)) {
//echo ＄path."/".＄filename."
";
＄newpath = ＄path."/".＄filename;
＄check_type = preg_match("/\.html?＄/", ＄filename);
if (is_file(＄newpath) && ＄check_type) {
＄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 "


".＄newpath."


";
get_msg(＄path."/".＄filename);
}
}
closedir(＄handle);
return ＄i;
}

function match_show(＄key, ＄msg, ＄newpath, ＄filename) {
global ＄key, ＄i;
＄key = chop(＄key);
if (＄key) {
＄msg = preg_replace("/