问题
HI, I have a problem with this query
SELECT * FROM table WHERE `name` LIKE '%tést%'
the HMTL and the SQL table both have utf-8 encoding but unfortunately there is no mysql_set_charset('utf-8') and I'm NOT able to use it.
I've tried with iconv("UTF-8", "ISO-8859-1", $name) but the query matches only test.
I want to match all of these : test, tést, tèst, tëst (as it would work with mysql_set_charset )
edit:
SET NAMES utf8 is nigher possible ... the database is with utf8 encoding, unfortunately the content is being filled from web without mysql_set_charset nor SET NAMES.
Currently if these functions are used the results are messed up.
version() 5.1.41-3ubuntu12.9
edit2:
when I use SET NAMES utf8 it matches only tést and they look like tést
when I use iconv("UTF-8", "ISO-8859-1", $name) it matches only test
回答1:
Before the query try:
mysql_query("SET NAMES 'utf8'", $conn);
*edits*
Apprently depending on MySQL version you might also be required to use:
mysql_query("SET CHARACTER SET utf8", $conn);
One final note, the database needs to be using the UTF-8 character set, to ensure this:
ALTER <database_name> DEFAULT CHARACTER SET utf8;
*More edits*
After reading your edits I think that this is a issue with your HTML/PHP encoding. On the page submitting the characters ensure that you set the headers properly:
header('Content-Type: text/html; charset=UTF-8');
You should also set this via meta tags:
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
Then set the multibyte encoding with the mb_internal_encoding() function:
mb_internal_encoding("UTF-8");
By default PHP uses ISO-8859-1.
回答2:
I have just performed a quick test, and MySQL works as you expect it to work.
Perhaps it's the way you connect to the database, you could try executing SET NAMES 'utf8'; before performing the queries and see if that helps!
Also, please note that mysql_set_charset should take utf8, with no dash! See an example from PHP to be sure!
Cheers!
回答3:
try regexp with the desired regular expression like
SELECT * FROM table WHERE name REGEXP #REGULAR EXP HERE#
回答4:
Have you tried SET NAMES?
mysql_query("SET NAMES utf8");
来源：https://stackoverflow.com/questions/5420787/mysql-and-php-encodings