SQL search multitable and contains - mysql

Question

Suppose that i have the following data:
CREATE TABLE IF NOT EXISTS `Class` (
`id` INT NOT NULL AUTO_INCREMENT,
`class name` CHAR(55) NOT NULL,
PRIMARY KEY (`id`)
);
REPLACE INTO `Class` (`id`,`class name`) VALUES
(1,'Mammalia'),(2, 'Amphibia'),(3, 'Aves'),(4, 'Reptile');
CREATE TABLE IF NOT EXISTS `Animals` (
`id` INT NOT NULL AUTO_INCREMENT,
`class_id` INT DEFAULT NULL,
`name` CHAR(55) NOT NULL,
PRIMARY KEY (`id`),
FOREIGN KEY (`class_id`) REFERENCES `Class`(`id`)
);
INSERT INTO `Animals` (`class_id`,`name`) VALUES
(1,'Przewalskis horse'),
(1,'Bos taurus'),
(1,'Sus scrofa'),
(1,'Panthera leo'),
(1,'Felis catus'),
(1,'Canis lupus'),
(1,'Pan troglodytes'),
(1,'Nasalis larvatus'),
(1,'Ailuropoda melanoleuca'),
(1,'Elephas maximus sumatranus'),
(1,'Panthera pardus orientalis'),
(2, 'Bufu Bufu'),
(2, 'Notophthalmus viridescens'),
(2, 'Dermophis mexicanus'),
(3, 'Campephilus melanoleucos melanoleucos'),
(3, 'Tyto alba'),
(3, 'Cathartes aura'),
(3, 'Serinus canaria'),
(3, 'Amazona aestiva'),
(3, 'Amazona Oratrix'),
(3, 'Anodorhynchus hyacinthinus'),
(3, 'Ara ararauna'),
(3, 'Ara chloropterus'),
(3, 'Strigops habroptilus'),
(4, 'Ameivula venetacaudus'),
(4, 'Chelonia mydas'),
(4, 'Caretta caretta');
I want to do a query with only one input html field that return the following results:
if i type: "Amphibia" returns:
-------------------
| Class | Animals |
-------------------
| Amphibia | Bufu Bufu |
| Amphibia | Notophthalmus viridescens |
| Amphibia | Dermophis mexicanus |
----------------------------------
if i type: "Amphibia Amazona" returns:
-------------------
| Class | Animals |
-------------------
| Amphibia | Bufu Bufu |
| Amphibia | Notophthalmus viridescens |
| Amphibia | Dermophis mexicanus |
| Aves | Amazona aestiva |
| Aves | Amazona Oratrix |
--------------------------
if i type: "caudu" returns
-------------------
| Class | Animals |
-------------------
| Reptile | Ameivula venetacaudus |
--------------------------
Sample codes in Fiddle are welcome!
Thankful right now

Answer 1

Considering that input_var is the variable that you will receive from your HTML, you can do the following query:
SELECT `class name`, name
FROM Animals
LEFT JOIN Class
ON (Class.id= Animals.class_id)
WHERE `class name` like concat('%',SUBSTRING_INDEX(SUBSTRING_INDEX(input_var, ' ', 1), ' ', -1),'%')
OR name like concat('%',SUBSTRING_INDEX(SUBSTRING_INDEX(input_var, ' ', 1), ' ', -1),'%')
OR `class name` like concat('%',SUBSTRING_INDEX(SUBSTRING_INDEX(input_var, ' ', 2), ' ', -1),'%')
OR name like concat('%',SUBSTRING_INDEX(SUBSTRING_INDEX(input_var, ' ', 2), ' ', -1),'%')
;
I am also considering that you can receive an input with the inversed animal/class order, like "Amazona Amphibia" instead of "Amphibia Amazona".
If may also consider if case sensitive is important to you. If not, you may use upper in both your input string and the table column.

Answer 2

Keep this as your base.
select id, `class name`, `name`
from animals
left join class
on (class.id= animals.class_id)
And for searching
select `class name`, `name` from
(select ...)
where concat("%", "$search1", "%") like `class name` or
concat("%", "$search2", "%") like `name`;
To split the first word (mysql)
substring_index(substring_index(var, ' ', 1), ' ', -1)
and for second word (mysql)
substring_index(substring_index(var, ' ', 2), ' ', -1)
In PHP you can use substr function.