MySql fulltextsökning i PHP med hjälp av strängar som innehåller nyckelord

Som MySQL manualen säger:

Låt oss titta på exempeltabellen:

mysql> select * from articles;
+----+-----------------------+------------------------------------------+
| id | title                 | body                                     |
+----+-----------------------+------------------------------------------+
|  1 | PostgreSQL Tutorial   | DBMS stands for DataBase ...             |
|  2 | How To Use MySQL Well | After you went through a ...             |
|  3 | Optimizing MySQL      | In this tutorial we will show ...        |
|  4 | 1001 MySQL Tricks     | 1. Never run mysqld as root. 2. ...      |
|  5 | MySQL vs. YourSQL     | In the following database comparison ... |
|  6 | MySQL Security        | When configured properly, MySQL ...      |
+----+-----------------------+------------------------------------------+

mysql> SELECT * FROM articles WHERE MATCH (title,body)
     AGAINST ('"database comparison"' IN BOOLEAN MODE);

+----+-------------------+------------------------------------------+
| id | title             | body                                     |
+----+-------------------+------------------------------------------+
|  5 | MySQL vs. YourSQL | In the following database comparison ... |
+----+-------------------+------------------------------------------+

Ordning spelar roll när orden citeras:

mysql> SELECT * FROM articles WHERE MATCH (title,body)
     AGAINST ('"comparison database"' IN BOOLEAN MODE);

Empty set (0.01 sec)

När vi tar bort citattecken kommer den att söka efter rader som innehåller orden "databas" eller "jämförelse":

mysql> SELECT * FROM articles WHERE MATCH (title,body)
     AGAINST ('database comparison' IN BOOLEAN MODE);

+----+---------------------+------------------------------------------+
| id | title               | body                                     |
+----+---------------------+------------------------------------------+
|  1 | PostgreSQL Tutorial | DBMS stands for DataBase ...             |
|  5 | MySQL vs. YourSQL   | In the following database comparison ... |
+----+---------------------+------------------------------------------+

Beställning spelar ingen roll nu:

mysql> SELECT * FROM articles WHERE MATCH (title,body)
     AGAINST ('comparison database' IN BOOLEAN MODE);

+----+---------------------+------------------------------------------+
| id | title               | body                                     |
+----+---------------------+------------------------------------------+
|  1 | PostgreSQL Tutorial | DBMS stands for DataBase ...             |
|  5 | MySQL vs. YourSQL   | In the following database comparison ... |
+----+---------------------+------------------------------------------+

Om vi ​​vill få rader, som innehåller antingen ordet "PostgreSQL" eller frasen "databasjämförelse", bör vi använda denna begäran:

mysql> SELECT * FROM articles WHERE MATCH (title,body)
     AGAINST ('PostgreSQL "database comparison"' IN BOOLEAN MODE);

+----+---------------------+------------------------------------------+
| id | title               | body                                     |
+----+---------------------+------------------------------------------+
|  1 | PostgreSQL Tutorial | DBMS stands for DataBase ...             |
|  5 | MySQL vs. YourSQL   | In the following database comparison ... |
+----+---------------------+------------------------------------------+

fiol

Se till att orden du söker efter inte finns i lista med stoppord , som ignoreras.