note 50600 added to function.scandir

A nice way to filter the files/directories you get back from scandir: <?php function pathFilter ($path, $aFilter) { // returns true iff $path survives the tests from $aFilter // $aFilter is an array of regular expressions: [-]/regExp/modifiers // if there is a leading '-' it means exclude $path upon a match (a NOT test) // If the first expression has a leading '-', $path is in, unless it gets excluded. // Otherwise, $path is out, unless it gets included via the filter tests. // The tests are applied in succession. // A NOT test is applied only if $path is currently (within the tests) included // Other tests are applied only if $path is currently excluded. Thus, // array("/a/", "-/b/", "/c/") => passes if $path has a c or if $path has an a but no b // array("/a/", "/c/", "-/b/") => passes if $path has an a or c, but no b // array("-/b/", "/a/", "/c/") => passes if $path has no b, or if $path has an a or c if (!$aFilter) return true; // automatic inclusion (pass) if no filters foreach ($aFilter as $filter) break; // we don't know how it's indexed $in = $filter[0]=="-"; // initial in/exclusion based on first filter foreach ($aFilter as $filter) // walk the filters if ($in==$not=($filter[0]=="-")) // testing only when necessary $in ^= preg_match(substr($filter,$not),$path); // flip in/exclusion upon a match return $in; } ?> Csaba Gabor from Vienna ---- Manual Page -- http://www.php.net/manual/en/function.scandir.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+50600 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+50600&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+50600&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+50600&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+50600&report=yes&reason=useless Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+50600&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+50600&report=yes Search -- http://master.php.net/manage/user-notes.php