TTFTEXT_BBOX     3774 gd.c           	php_imagettftext_common(INTERNAL_FUNCTION_PARAM_PASSTHRU, TTFTEXT_BBOX, 1);
TTFTEXT_BBOX     3791 gd.c           	php_imagettftext_common(INTERNAL_FUNCTION_PARAM_PASSTHRU, TTFTEXT_BBOX, 0);
TTFTEXT_BBOX     3817 gd.c           	if (mode == TTFTEXT_BBOX) {