PHP_CONV_QPRINT_OPT_FORCE_ENCODE_FIRST  871 standard/filters.c 		} else if ((!(opts & PHP_CONV_QPRINT_OPT_FORCE_ENCODE_FIRST) || line_ccnt < inst->line_len) && ((c >= 33 && c <= 60) || (c >= 62 && c <= 126))) { 
PHP_CONV_QPRINT_OPT_FORCE_ENCODE_FIRST 1405 standard/filters.c 				opts |= (opt_force_encode_first ? PHP_CONV_QPRINT_OPT_FORCE_ENCODE_FIRST : 0);