php_getimagetype 4174 exif/exif.c    	itype = php_getimagetype(stream, NULL TSRMLS_CC);
php_getimagetype 1302 standard/image.c 	itype = php_getimagetype(stream, NULL TSRMLS_CC);
php_getimagetype   62 standard/php_image.h PHPAPI int php_getimagetype(php_stream *stream, char *filetype TSRMLS_DC);