return_unknown    572 ext/phar/phar_internal.h char *phar_decompress_filter(phar_entry_info * entry, int return_unknown);
return_unknown    573 ext/phar/phar_internal.h char *phar_compress_filter(phar_entry_info * entry, int return_unknown);
return_unknown   1174 ext/phar/util.c char * phar_compress_filter(phar_entry_info * entry, int return_unknown) /* {{{ */
return_unknown   1182 ext/phar/util.c 		return return_unknown ? "unknown" : NULL;
return_unknown   1190 ext/phar/util.c char * phar_decompress_filter(phar_entry_info * entry, int return_unknown) /* {{{ */
return_unknown   1206 ext/phar/util.c 			return return_unknown ? "unknown" : NULL;