Design And Realization Of Website Search Engine

With the development and the popularization of the Internet, amount of information in the Internet increases swiftly, this make everybody think fleetness search the contents becomes a kind of extravagant hopes.For solving this problem, search engine technique appeared, becoming the focus people the more and more concerned. Search engine in the Internet primarily contain three kinds of basic types: The full text search engine, search index directory and meta search engine roundup. The functions of the former two search engines mutually use for reference and compensatory with each other, The boundary between the two search engines is becoming more and more mistily, but meta search engine roundup having no own data, deliver the customer's claim to many search engines at the same time, After carrying on re-lining up and repeat delete the return result, feed back the customer.This thesis emphatically analyzed the content about Chinese participle, text pretreatment and compress, the principle of search engine, workflow, search handle process etc. But this thesis is according to search index directory for target, using PHP+ the database of MySQL to realize search index. In design process, collects information by artificial mode, after editors look into the information, artificial formation of the information summary, Place information in the certain classification in advance, build up the index to the important contents again. after connecting the data source, First, carrying on the format processing to the index phrase that customer input, deleting to appear in the key word in front and back of blank space, and change the invalid word blank space, connect down it with the database contents to carry on approximate to match and use recursion method to export all related contents as a result.