php - What's the best way to store Checkbox Values in MySQL Database? -

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first, take @ page example: click here

if view 'amenities' section, there 3 sets of checkboxes (unit features, community features , utilities included in rent).

my question is: how can use php make 3 array variables (e.g. $unit_features, $community_features , $utilities_included) store boxes are/are not checked 3 respective fields in table?

more importantly: how pull data out of table in same array format specifics can viewed/edited/deleted?

  • note, i've tried countless times having separate fields in table (as tinyints) - gets bulky , isn't elegant @ all...i thought of making object class failed yet again..

you have many-to-many relationship between properties , amenities. model this, need separate table, not variable number of columns.

there 1 table stores properties.

insert property (id, address, square_footage...) values (111, '123 main st', 1234...)

there 1 table stores possible amenities.

insert amenities (id, type, description) values (222, 'unit features', 'air conditioning');

for each amenity property has, insert 1 row table relating these two:

insert property_amenitities (property_id, amenity_id) values (111, 222);

when want know amenities specific property has, select rows table property's key. when want print out checkboxes amenities, select amenities table , left outer join property_amenities table. rows null values property_amenities table boxes unchecked.

related reading. should pick book on relational databases local borders before go out of business :)


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