How to implement similar search in php

This article mainly introduces "how to achieve similar search in php". In daily operation, I believe that many people have doubts about how to achieve similar search in php. The editor consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful to answer the doubts about "how to achieve similar search in php". Next, please follow the editor to study!

Php to achieve similar search methods: 1, to create an PHP example file; 2, to split the first word of the keyword; 3, to extract the first two words of each keyword as a new keyword; 4, each keyword query and add the query results to the array; 5, return the array.

This article operating environment: Windows7 system, PHP7.1 version, DELL G3 computer

How does php implement similar lookups?

Php simply implements word segmentation search, fuzzy search, multi-keyword search and fuzzy query.

Preprocessing keyword

The first word of the keyword starting at 0 is truncated as a new preprocessing keyword.

Word segmentation

Then, each keyword that truncates the first word is truncated and the first two words are intercepted as independent keywords, namely participle.

Finally, query the database for each keyword, if the query results are added to an array, no results will not be added to the array, all the keywords have been checked, and the results can be output.

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