mysql SELECT LIKE必须只对整个单词匹配变量

Question

I have a $string variable, and I use

 SELECT * FROM db WHERE description LIKE '%$string%' OR headline LIKE '%$string%'

As seen, I want to search the two fields "description" and "headline" to see if the string variable matches any of them.

Problem is that I want it to match whole words!!!

Ex: If description contains "hello", It is enough if $string is an 'h'. this is not what I want.It has to match the whole word only!

I split the querystring into words for this? or what?

Answer 1

If you want full word matching you should consider trying FULLTEXT searching. One prerequisite is that your table must be using the MyISAM engine:

CREATE TABLE test (
  id INT(11) UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
  headline VARCHAR(120) NOT NULL,
  description VARCHAR(255) NOT NULL,
  FULLTEXT(headline, description)
) ENGINE=MyISAM;

You would query for matches like so:

SELECT *
FROM test
WHERE MATCH (headline,description) AGAINST('$string');

This has the added benefit of ordering your results by relevancy.