tag_num          1000 ext/exif/exif.c static char * exif_get_tagname(int tag_num, char *ret, int len, tag_table_type tag_table TSRMLS_DC)
tag_num          1006 ext/exif/exif.c 		if (t == tag_num) {
tag_num          1020 ext/exif/exif.c 		snprintf(tmp, sizeof(tmp), "UndefinedTag:0x%04X", tag_num);