I'm trying to access a table which is named, say, "Вильгельм_Телль". So I do the following:
$group = "Вильгельм_Телль";
$msql = "SELECT result FROM $group";
What I get is:
check the manual that corresponds to your MySQL server version for the right syntax to use near '�ильгельм_Телль' at line 1
Extra information:
The issue only seems to affect only the first character of the string
My meta charset is set to UTF8
My PHP charset is set to UTF8 using mysqli_set_charset, I get the same result using 'header (...)'
My file is saved as UTF8 without BOM
I'm using WAMP to serve my page
EDIT: it doesn't work as one-word either
You must use `` (quote identifier) for sql queries.
SELECT * FROM `Вильгельм Телль`
Recommendation: do not use anything other ansi characters for table names, columns etc. You may face problems in other apps, cli etc.
Related
There are already plenty of posts about choosing the right charset for mysql, but it's again a different (and very frustrating) story for the rocksdb engine.
Firstly, I decided to use utf8-binary as charset (latin1, utf8-bin and binary are supported by myrocks) because my data may contain special chars and I want to be on the save side.
Furthermore, I am using PHP and PDO for loading data into mysql and the connection looks like this:
$pdo = new PDO('mysql:host=localhost;dbname=dbname;charset=utf8', 'user', 'password');
So I set the charset to utf8 (I also tried to use utf8_bin, but this is not supported by PDO). Although, I am able to insert some rows, sometimes I get errors like the following one:
Incorrect string value: '\xF0\x9F\x87\xA8\xF0\x9F...' for column 'column_name'
But what's the error now? This hex sequence encodes a unicode-smily (a regional indicator symbol letter c + regional indicator symbol letter n). Seems for me like valid utf8 and mysql as well as php are configured to use it.
You gotta have utf8mb4, not MySQL's subset utf8.
🇨 needs a 4-byte UTF-8 encoding, hex F09F87A8.
If rocksdb does not support it, then abandon either such characters, or rocksdb. Change the charset in the PDO call, and on the columns that need it.
I have Sql Server version 10.50. And PHP version, 5.5.28.
I have a DB with collation Turkish_CI_AS and there is some tables also Turkish collaction.
My problem is, When i SELECT some records with PHP sqlsrv function then put them to while() loop, the returning results contains Turkish characters turning it self to English Characters, for example: The record in the table is İnsan but when i echo my while loop its gives me Insan.
I did some changes in php.ini file and set default encodings as Turkish:,
mssql.charset = "ISO-8859-9" and default_charset = "ISO-8859-9". But nothing changed.
I don't know is it sql related or php related problem, i hope you can give me some advices.
By the way, there is no problem on Sql server management studio. It gaves me right results when i run same query.
You can use utf-8 encoding as a standard if you work with any language, I always use Arabic with English and utf-8 give me full support. You should make your database encoding utf8_general_ci, then when you insert your Turkish data you must use this query in the main insertion data function in PHP:
mysql_query(" SET NAMES 'utf8'");
This will support any data with any language.
Ok, here is how i resolve my problem in my IIS server which is connecting to Mssql:
I go to
Control Panel > Region > Administrative > Change system locale...
And i changed my Current system locale... as Turkish
I use these codes for adding PHP/Mysqli Turkish Language Support.
// Türkçe Dil Desteği
date_default_timezone_set("Europe/Istanbul"); // For Default Date
setlocale(LC_ALL, 'tr_TR.UTF-8'); // For UTF-8 Characters
$db->query("SET NAMES 'utf8'"); // For All Sql Queries Set Default UTF-8
$db->set_charset("utf8"); // For All Sql Queries Set Default UTF-8
I have form with input text, when i add text
Un sac à main de femme recèlerait une quantité importante de bactéries
it adds in database only Un sac
i have tried with addslashes, mysql_real_escape_string, htmlspecialchars etc. also using UTF-8 encoding, but still it can not insert whole string
YOu should use utf8_unicode_ci as your column's collation in orer for French strings to be added in it.
In order to store non-US strings in the database, you must ensure that each of the following 3 steps are correctly implemented:
You database table must be set to a charset compatible with French. To be future proof, I recommend creating tables with UTF-8. For more information see the MySQL documentation.
Your database connection must be set to a proper character set both when storing and when querying. To do this, use mysqli_set_charset() (or whatever your MySQL connector offers).
Your input form AND your view page must be served with the exact character set as your data. To do that, you will need to set the following header: header('Content-Type: text/html; charset=UTF-8'); (If you are using a different charset, change it accordingly.)
You can of course use a different character set for storage and representation but why would you want to do that?
Also, when working with databases and HTML, you should consider:
ALWAYS escape your data as it goes into the database. Use mysqli_real_escape_string() or whatever escape method your database connector offers. Also, do NOT set the connection charset by using SET NAMES UTF8, otherwise your connector library will not know what charset to use for escaping. For more information google "sql injection".
ALWAYS escape your data as it goes into HTML with htmlspecialchars(). Also pay attention to ALWAYS provide the correct character set. For more information google "xss".
After breaking my head for 2 days straight and reading all the possible answers here's what solved the problem and allows me to insert additional weird characters like em dash etc. and retrieve data without seeing weird characters.
Here's the complete step-by-step setup.
The collation of the db column need to be: utf8_general_ci
The type is: varchar(250)
In the PHP header set the default client character set to UTF8
mysql_set_charset("UTF8", $link);
Set the character set result so we can show french characters
$sql = "SET character_set_results=utf8";
$result = mysql_query($sql);
In the html header specify, so you can view the french characters:
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
When inserting the data do NOT use utf8_decode, just the below will work fine
$query = 'insert into tbl (col) VALUES ("'.mysql_real_escape_string($variable).'");
Use normal queries to retreive data, example query:
$query = "select * from table;";
Finally got this fixed, hope this is helpful to others.
In the php:
header ('Content-type: text/html; charset=utf-8');
After connection:
mysql_set_charset("utf8");
Just to follow up with this, I was using dbForge Studio and just pasting in French text and I had all the collations/encoding set properly. The one thing I didn't have set was the actual encoding for the connection to the db. Set it to UTF8 and all was well again. #2 in #Janoszen answer.
Had the same problem. The input text came from ANSII file, so it wasn't quite UTF8, despite all my utf8 settings. utf8_encode(input_text) solved it.
I have tried
htmlentities()
. .it saves the string as it is in the database
You should try this to insert special character in mysql :
$con = mysql_connect($server,$uname,$pass);
$res = mysql_select_db($database,$con)
mysql_set_charset("letin1", $con);
I am using PHP 5.3.3 and MySQL 5.1.61. The column in question is using UTF-8 encoding and the PHP file is encoded in UTF-8 without BOM.
When doing a MySQLi query with a ² character in SQLyog on Windows, the query executes properly and the correct search result displays.
If I do this same exact query in PHP, it will execute but will show 0 affected_rows.
Here's what I tried:
Using both LIKE instead of =
Changing the encoding of the PHP file to ANSI, UTF-8 without BOM, and UTF-8
Doing 'SET NAMES utf-8' and 'latin1' before running the query
Did header('Content-Type: text/html; charset=UTF-8'); in PHP
Escaping using MySQLi::real_escape_string
Doing a filter_var($String, FILTER_SANITIZE_STRING)
Tried a MySQLi stmt bind
The only way I could get it to work properly is if I swapped the ² for a % and changed = to LIKE in PHP.
How can I get it query properly in PHP when using the ²?
You should be able to get the query to work by ensuring the following:
Prepping PHP for UTF-8
You first need to make sure the PHP pages that will be issuing these queries are served as UTF-8 encoded pages. This will ensure that any UTF-8 output coming from the database is displayed properly. In Firefox, you can check to see if this is the case by visiting the page you're interested in and using the View Page Info menu item. When you do so, you should see UTF-8 as the value for the page's Encoding. If the page isn't being served as UTF-8, you can do so one of two ways. Either you can set the encoding in a call to header(), like this:
header('Content-Type: text/html; charset=UTF-8');
Or, you can use a meta tag in your page's head block:
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
Prepping MySQL for UTF-8
Next up, you need to make sure the database is set up to use the UTF-8 encoding. This can be set at the server, database, table, or column levels. If you're on a shared host, you probably can only control the table and column levels of your hierarchy. If you have control of the server or database, you can check to see what character encoding they are using by issuing these two commands:
SHOW VARIABLES LIKE 'character_set_system';
SHOW VARIABLES LIKE 'character_set_database';
Changing the database level encoding can be done using a command like this:
(CREATE | ALTER) DATABASE ... DEFAULT CHARACTER SET utf8;
To see what character encoding a table uses, simply do:
SHOW CREATE TABLE myTable;
Similarly, here's how to change a table-level encoding:
(CREATE | ALTER) TABLE ... DEFAULT CHARACTER SET utf8;
I recommend setting the encoding as high as you possibly can in the hierarchy. This way, you don't have to remember to manually set it for new tables. Now, if your character encoding for a table is not already set to UTF-8, you can attempt to convert it using an alter statement like this:
ALTER TABLE ... CONVERT TO CHARACTER SET utf8;
Be very careful about using this statement! If you already have UTF-8 values in your tables, they may become corrupted when you attempt to convert. There are some ways to get around this, however.
Forcing MySQLi to Use UTF-8
Finally, before you connect to your database, make sure you issue the appropriate call to say that you are using the UTF-8 encoding. Here's how:
$db = new mysqli(DB_HOST, DB_USERNAME, DB_PASSWORD, DB_NAME);
// Change the character set to UTF-8 (have to do it early)
if(! $db->set_charset("utf8"))
{
printf("Error loading character set utf8: %sn", $db->error);
}
Once you do that, everything should hopefully work as expected. The only characters you need to worry about encoding are the big 5 for HTML: <, >, ', ", and &. You can handle that using the htmlspecialchars() function.
If you want to read more (and get links to additional resources), feel free to check out the articles I wrote about this process. There are two parts: Unicode and the Web: Part 1, and Unicode and the Web: Part 2. Good luck!
im facing a really stressing problem here.. i have everything in UTF-8 , all my DB and tables are utf8_general_ci but when trying to insert or update from a single PHP script all i see are symbols.. but if i edit in phpmyadmin the words are shown correctly.. i found that if i run the utf8_decode() function to my strings in php i can make it work, but im not planning to do that because is a mess and it should work without doing that :S
Here is a basic code im using to test this:
<?php
$conn=mysql_connect("localhost","root","root")
or die("Error");
mysql_select_db("mydb",$conn) or
die("Error");
mysql_query("UPDATE `mydb`.`Clients` SET `name` = '".utf8_decode("Araña")."' WHERE `Clients`.`id` =25;",
$conn) or die(mysql_error());
mysql_close($conn);
echo "Success.";
?>
This is what i get if i dont decode utf8 with php utf8_decode function:
instead of Araña, i get : Araña
I've run into the same issue many times. Sometimes it's because the type of database link I'm selecting from isn't the same type that I'm using for inserting and other times, it's from file data into a database.
For the later instance, mysql_set_charset('utf8',$link); is the magic answer.
Place the call to mysql_set_charset just after you select your database via mysql_select_db.
#ref http://php.net/manual/en/function.mysql-set-charset.php
"Araña" IS UTF-8. The characters "ñ" represent the two bytes into which the Spanish ñ are encoded in UTF-8. Whatever you're reading it back with is not handling the UTF-8 and is displaying it as (it appears) ISO-8859-1.
That DDL you mentioned has to do with the collation, not the character set. The correct statement would be:
ALTER TABLE Clients CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci;
You still need to make sure the client library (libmysql or whatever driver PHP is using) is not transcoding the data back to ISO-8859. mysql_set_charset('utf8') will explicitly set the client encoding to UTF-8. Alternatively, you can send a SET NAMES UTF8; right after you connect to the database. To do that implicitly, you can change the my.cnf [client] block to have utf-8 as the client character encoding (and /etc/init.d/mysql reload to apply). Either way, make sure the client doesn't mangle the results it's pulling.
[client]
default-character-set=utf8
You do not need to use utf8_decode if you're using mbstrings. The following php.ini configuration should ensure UTF-8 support on the PHP side:
mbstring.internal_encoding = utf-8
mbstring.http_output = utf-8
mbstring.func_overload = 6
Finally, when you display the results in HTML, verify that the page's encoding is explicitly UTF-8.