function get_filenames_by_extension($source_dir, $extensions = array(), $include_path = FALSE, $_recursion = FALSE)
{
static $_filedata = array();
if ($fp = @opendir($source_dir)) {
// reset the array and make sure $source_dir has a trailing slash on the initial call
if ($_recursion === FALSE) {
$_filedata = array();
$source_dir = rtrim(realpath($source_dir), DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR;
}
while (FALSE !== ($file = readdir($fp))) {
if (@is_dir($source_dir . $file) && strncmp($file, '.', 1) !== 0) {
get_filenames_by_extension($source_dir . $file . DIRECTORY_SEPARATOR, $extensions, $include_path, TRUE);
} elseif (strncmp($file, '.', 1) !== 0) {
if (in_array(pathinfo($file, PATHINFO_EXTENSION), $extensions)) {
$_filedata[] = $include_path == TRUE ? $source_dir . $file : $file;
}
}
}
return $_filedata;
} else {
return FALSE;
}
}
/**
* Get filenames by extension.
*
* Read the specified directory and build an array containing the filenames.
* Any sub-folders contained within the specified path are also read.
*
* @param string $sourceDir Path to the directory.
* @param array $extensions Extensions of files to retrieve.
* @param bool $includePath Whether the path will be included with the
* filename.
* @param bool $_recursion Internal variable to determine recursion status.
* Not intended for external use.
*
* @return array An array of filenames.
*/
function get_filenames_by_extension($sourceDir, $extensions = array(), $includePath = false, $_recursion = false)
{
static $_filedata = array();
if ($fp = @opendir($sourceDir)) {
// Reset the array and ensure $sourceDir has a trailing slash on the
// initial call
if ($_recursion === false) {
$_filedata = array();
$sourceDir = rtrim(realpath($sourceDir), DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR;
}
while (false !== ($file = readdir($fp))) {
if (strncmp($file, '.', 1) === 0) {
continue;
}
if (@is_dir("{$sourceDir}{$file}")) {
get_filenames_by_extension("{$sourceDir}{$file}" . DIRECTORY_SEPARATOR, $extensions, $includePath, true);
} elseif (in_array(pathinfo($file, PATHINFO_EXTENSION), $extensions)) {
$_filedata[] = $includePath ? "{$sourceDir}{$file}" : $file;
}
}
return $_filedata;
}
return false;
}
