Php from the database to determine the title repeat, such as Haidian District, maintenance of automatic doors and Shijingshan installation of electric doors how to filter repeat it, the database has more than 6W
If it is a precise judgment, you can consider the group function with the index statement.
MySQL database does not support the Chinese index to rely on artificial text (remember open source SWCS), and then replace the 4-digit code store, and then call the mysql database full-text index
Rely on artificial word segmentation (then remember that there is a swcs open source), and then replaced by a four-digit location code storage, and then call the mysql database full-text index
