FS_MTIME          779 ext/spl/spl_directory.c FileInfoFunction(getMTime, FS_MTIME)
FS_MTIME          879 ext/standard/filestat.c 	case FS_MTIME:
FS_MTIME         1038 ext/standard/filestat.c FileFunction(PHP_FN(filemtime), FS_MTIME)