11. A computer-implemented method for facilitating information in multiple languages based on an optical code, comprising: receiving, by a computing device, a query message from a user device, wherein the query message comprises an optical code identifier, a list of one or more target languages for obtaining a set of target text phrases associated with a text phrase, and information indicating which of the one or more target languages is supported by the user device, wherein a respective target text phrase is a translation of the text phrase in a target language; retrieving, based on the optical code identifier, the set of target text phrases from one or more data structures stored in a local storage device; and in response to determining that a first target language of the one or more target languages is not supported by the user device, converting the target text phrase in the first target language to an image; and sending, to the user device, a response message comprising the set of target text phrases and the image, thereby allowing the user device to display the image and target text phrases supported by the user device.
11. A computer-implemented method for facilitating information in multiple languages based on an optical code, comprising: receiving, by a computing device, a query message from a user device, wherein the query message comprises an optical code identifier, a list of one or more target languages for obtaining a set of target text phrases associated with a text phrase, and information indicating which of the one or more target languages is supported by the user device, wherein a respective target text phrase is a translation of the text phrase in a target language; retrieving, based on the optical code identifier, the set of target text phrases from one or more data structures stored in a local storage device; and in response to determining that a first target language of the one or more target languages is not supported by the user device, converting the target text phrase in the first target language to an image; and sending, to the user device, a response message comprising the set of target text phrases and the image, thereby allowing the user device to display the image and target text phrases supported by the user device. 12. The method of claim 11 , wherein the one or more data structures are database tables; and wherein retrieving the set of target text phrases comprises: generating a database query based on information received from the query message; and obtaining the set of target text phrases by applying the database query to the database tables.