note 60562 added to class.dir

This one's pretty nice. After getting frustrated for hunting down .jpg files in my massive music collection (PHP would run out of memory), I thought there should be a preg_ls function. function preg_ls ($path=".", $rec=false, $pat="/.*/") { // it's going to be used repeatedly, ensure we compile it for speed. $pat=preg_replace("|(/.*/[^S]*)|s", "\\1S", $pat); //Remove trailing slashes from path while (substr($path,-1,1)=="/") $path=substr($path,0,-1); //also, make sure that $path is a directory and repair any screwups if (!is_dir($path)) $path=dirname($path); //assert either truth or falsehoold of $rec, allow no scalars to mean truth if ($rec!==true) $rec=false; //get a directory handle $d=dir($path); //initialise the output array $ret=Array(); //loop, reading until there's no more to read while (false!==($e=$d->read())) { //Ignore parent- and self-links if (($e==".")||($e=="..")) continue; //If we're working recursively and it's a directory, grab and merge if ($rec && is_dir($path."/".$e)) { $ret=array_merge($ret,preg_ls($path."/".$e,$rec,$pat)); continue; } //If it don't match, exclude it if (!preg_match($pat,$e)) continue; //In all other cases, add it to the output array $ret[]=$path."/".$e; } //finally, return the array return $ret; } Not bad for a mere 18 lines, don't you think? Example use: foreach (preg_ls("/etc/X11", true, "/.*\.conf/i") as $file) echo $file."\n"; Output: /etc/X11/xkb/README.config /etc/X11/xorg.conf-vesa /etc/X11/xorg.conf~ /etc/X11/gui.conf /etc/X11/xorg.conf /etc/X11/xorg.conf-fbdev ---- Manual Page -- http://www.php.net/manual/en/class.dir.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+60562 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+60562&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+60562&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+60562&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+60562&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+60562&report=yes&reason=non-english Delete: already in docs -- http://master.php.net/manage/user-notes.php?action=delete+60562&report=yes&reason=already+in+docs Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+60562&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+60562&report=yes Search -- http://master.php.net/manage/user-notes.php