The code below that I am using will not print text that is of arabic form from the database although the collation of the table is uft8_general_ci and the database is of collation uft8_general_ci.
code:
<?php
// Create connection
$con = mysqli_connect("localhost", "", "", "");
mysqli_set_charset('utf8', $con);
// Check connection
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
// This SQL statement selects ALL from the table 'Locations'
$sql = "SELECT * FROM Mothakirat";
mysqli_set_charset('utf8', $sql);
// Check if there are results
if ($result = mysqli_query($con, $sql))
{
// If so, then create a results array and a temporary one
// to hold the data
$resultArray = array();
$tempArray = array();
// Loop through each row in the result set
while ($row = $result->fetch_object())
{
// Add each row into our results array
$tempArray = $row;
array_push($resultArray, $tempArray);
}
// Finally, encode the array to JSON and output the results
echo htmlentities(json_encode($resultArray));
}
// Close connections
mysqli_close($con);
?>
How can I get the arabic to print properly?
When working with non-Latin characters in a web based environment, I find there are three points of failure:
1) You need to tell mysql what output to give you when you connect (which you've already done, I think):
mysqli_query('SET CHARACTER SET utf8');
2) You probably need to add
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
into the <head> section in your html.
3) You need to ensure that the font used to display the text has glyphs for the characters you are expecting to see (Times New Roman may not suffice). I have done stuff with Greek and Hebrew and I often find fonts have basic support but not when there are diacritics.
May be a long shot but have you checked the charset of the actual field?
https://dev.mysql.com/doc/refman/5.0/en/charset-column.html
Related
I wrote this php script that allows me to fetch all the rows in a table in my MySQL database.
I have put the echo "1", etc. to see whether it gets to the code at the very end. The output proves it does. However, it does not output anything when echoing json_encode($resultsArray), which I can't seem to figure out why.
Code:
// Create connection
$connection = mysqli_connect("localhost", "xxx", "xxx");
// Check connection
if (!$connection) { die("Connection failed: " . mysqli_connect_error()); } else { echo "0"; }
// select database
if (!mysqli_select_db($connection, "myDB")) { die('Unable to connect to database. '. mysqli_connect_error()); } else { echo "1"; }
$sql = "select * from myTable";
$result = mysqli_query($connection, $sql) or die(mysqli_error($connection));;
echo "3";
$resultsArray = array();
while($row = mysqli_fetch_assoc($result)) {
// convert to array
$resultsArray[] = $row;
}
echo "4";
// return array w/ contents
echo json_encode($resultsArray);
echo "5";
Output:
01345
I figured, it is not about the json_encode, because I can also try to echo sth. like $result['id'] inside the while loop and it just won't do anything.
For testing, I went into the database using Terminal. I can do select * from myTable without any issues.
Any idea?
After around 20hrs of debugging, I figured out the issue.
As I stated in my question, the code used to work a few hours before posting this question and then suddenly stopped working. #MichaelBerkowski confirmed that the code is functional.
I remembered that at some point, I altered my columns to have a default value of an empty string - I declared them as follows: columnName VARCHAR(50) NOT NULL DEFAULT ''.
I now found that replicating the table and leaving out the NOT NULL DEFAULT '' part makes json_encode() work again, so apparently there's an issue with that.
Thanks to everybody for trying anyway!
I have some text in a database. I use French and English. French has accents, and some special characters like ç. I use Mamp, MySQL and PHP.
I have collation latin1_swedish-ci (the default). I tried utf8_general_ci and the result is the same.
If I use in a html page, I have this in the head: <meta charset="UTF-8">
As an example, in the database I have "voilà".
When I echo the text from the database to html:
$con = mysqli_connect("localhost","root","root");
if (!$con) {
die('The connexion failed: ' . mysqli_error());
}
if (!mysqli_select_db($con, 'prova')){
echo "Connection with database was not possible";
}
$result = mysqli_query($con, "SELECT * FROM test1
WHERE id='1' ")
or die(mysqli_error());
while($row = mysqli_fetch_array($result)) {
$text = $row['first'];
echo $text; //I see: voil�
echo htmlentities($text); //I see nothing
echo utf8_encode($text); //This works: I see voilà
}
Why htmlentities does not work?
Is utf8_encode(); the way to go? I have to use that always when I output something from the database? Why do I have to use that if the collation is already UTF8? Is there any better way to store and output text with accents in a MySQL database?
After you connect to the DB you should set the client charset to UTF8:
mysqli_set_charset($con, "UTF8");
Otherwise the mysql client transforms the UTF8 'voilà' to latin1 ('cause it seems that is it's default).
Either you tell the client that I want everything in UTF8, or you get it with the default latin1, and convert it one-by-one yourself calling utf8_encose($text)
I have a problem, when I try to echo a cyrillic character, it return like ????
Here's code
<?
include('db.php');
$sql = "SELECT * FROM menu_items WHERE reference=1";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
$rows = array();
while($row = $result->fetch_object()) {
$rows[] = json_encode($row);
}
$items = implode(',',$rows);
echo '['.$items.']';
}else {
echo "ERROR";
}
?>
Any idea?
Collation : utf8_general_ci
And db.php:
<?
$servername = "localhost";
$username = "test";
$password = "Conqwe333!";
$conn=mysqli_connect($servername,$username,$password,"test");
// Check connection
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
?>
Worked after <? $conn->set_charset("utf8");?>
Add before your $sql
$conn->query('SET NAMES utf8');
You can read more about it here
Also you will need to set proper header for browser. You can do it by serveral ways for example in meta html tag or using header('Content-Type: text/html; charset=utf-8');
You should set collation per connection:
mysqli_set_charset
Also you can perform sql
SET NAMES utf8;
but it's not recommended
<?php
$mysqli = new mysqli("localhost", "my_user", "my_password", "test");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
/* change character set to utf8 */
if (!$mysqli->set_charset("utf8")) {
printf("Error loading character set utf8: %s\n", $mysqli->error);
} else {
printf("Current character set: %s\n", $mysqli->character_set_name());
}
$mysqli->close();
I am assuming you are using Bulgarian and UTF8, same will work for Russian and other languages, just change "bg" to proper string.
I do not recommend you to use cp1251, because it breaks unexpectedly with apache mod_rewrite and other tools like this.
You need to do following checks:
Check if your database / table collation is some UTF8. It could be utf8_general_ci or Bulgarian - difference is minimal and is more sorting related. (utf8_general_ci is perfectly OK)
Check you have following statement executed right after connect - set names UTF8;. You can do $mysqli->query("set names utf8");
Make sure you have proper "tags". Here an example:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html lang='bg' xml:lang='bg' xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Нов сайт :)</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf8">
You can include UTF8 "BOM" on the html, but it works pretty well without it. I usually work without "BOM", and when I want to be 100% complaint, I create an include file bom.php that contain just the BOM symbol and include it prior HTML template in normal PHP way, e.g. include "bom.php".
Hope this helps, if not, please comment.
EDIT:
Someone suggested you must be sure if your data is properly stored in MySQL. Easiest way is to open PHP MySQL Admin. If Cyrillic is shown there, all is OK.
I think the issue is a step back, try to first encode the cyrillic characters correctly: How to encode cyrillic in mysql?
I'm using PHP files to output JSON data from a MySQL database. My code works just fine when I'm only pulling about 50 rows, however my database contains over 12,000 rows. Does anyone know how I might go about pulling more data without my server returning the "White screen of death"? Lol. My current code is below:
<?php
//Create Database connection
$db = mysql_connect("localhost","username","password");
if (!$db) {
die('Could not connect to db: ' . mysql_error());
}
//Select the Database
mysql_select_db("dbname",$db);
//Replace * in the query with the column names.
$result = mysql_query("select * from customer limit 50", $db);
//Create an array
$json_response = array();
while ($row = mysql_fetch_array($result, MYSQL_ASSOC)) {
$row_array['customerfname'] = $row['customerfname'];
$row_array['customerlname'] = $row['customerlname'];
$row_array['customeremail'] = $row['customeremail'];
$row_array['customerphone'] = $row['customerphone'];
$row_array['customercity'] = $row['customercity'];
$row_array['customeraddress'] = $row['customeraddress'];
$row_array['lastupdate'] = $row['lastupdate'];
//push the values in the array
array_push($json_response,$row_array);
}
echo json_encode($json_response);
//Close the database connection
fclose($db);
?>
If the first 50 rows are coming well, the problem is probably with the data...
i think a malicious single quote or something
You can try different sets of data by using limit like so.
for example if you want to check next 50 and skip first 50 with limit
$result = mysql_query("select * from customer limit 50, 50", $db);
i think you should try in sets of 1 to 50 , 50 to 100 and then narrow down to next 10 and find out which set and then which row / record is giving problem and then search out a solution for json encoding the problem area.
You could output json data according to GET/POST parameter, by paginating the results in your sql table. E.g., if you want the rows from 50th to 100th, you could do something like this:
<?php
//Create Database connection
$mysqli = new mysqli("localhost", "username", "password", "dbname");
if ($mysqli->connect_errno) {
die('Could not connect to db: ' . $mysqli->connect_error);
}
// Get the page we are interested in
$page = $_REQUEST['page']; // E.g. 1
//Replace * in the query with the column names.
$result = $mysqli->query("SELECT * FROM customer LIMIT ".(50*$page).",50");
//Create an array
$json_response = array();
while ($row = $result->fetch_assoc()) {
//push the values in the array
array_push($json_response,$row);
}
echo json_encode($json_response);
// free result set
$result->close();
//Close the database connection
$mysqli->close();
?>
This question already has answers here:
UTF-8 all the way through
(13 answers)
Closed 12 months ago.
I have a mysql table with contents
the structure is here:
I want to read and print the content of this table to html
This is my code:
<?php
include("config.php");
$global_dbh = mysql_connect($hostname, $username, $password)
or die("Could not connect to database");
mysql_select_db($db)
or die("Could not select database");
function display_db_query($query_string, $connection, $header_bool, $table_params) {
// perform the database query
$result_id = mysql_query($query_string, $connection)
or die("display_db_query:" . mysql_error());
// find out the number of columns in result
$column_count = mysql_num_fields($result_id)
or die("display_db_query:" . mysql_error());
// Here the table attributes from the $table_params variable are added
print("<TABLE $table_params >\n");
// optionally print a bold header at top of table
if($header_bool) {
print("<TR>");
for($column_num = 0; $column_num < $column_count; $column_num++) {
$field_name = mysql_field_name($result_id, $column_num);
print("<TH>$field_name</TH>");
}
print("</TR>\n");
}
// print the body of the table
while($row = mysql_fetch_row($result_id)) {
print("<TR ALIGN=LEFT VALIGN=TOP>");
for($column_num = 0; $column_num < $column_count; $column_num++) {
print("<TD>$row[$column_num]</TD>\n");
}
print("</TR>\n");
}
print("</TABLE>\n");
}
function display_db_table($tablename, $connection, $header_bool, $table_params) {
$query_string = "SELECT * FROM $tablename";
display_db_query($query_string, $connection,
$header_bool, $table_params);
}
?>
<HTML><HEAD><TITLE>Displaying a MySQL table</TITLE></HEAD>
<BODY>
<TABLE><TR><TD>
<?php
//In this example the table name to be displayed is static, but it could be taken from a form
$table = "submits";
display_db_table($table, $global_dbh,
TRUE, "border='2'");
?>
</TD></TR></TABLE></BODY></HTML>
but I get ???????? as the results:
Where is my mistake?
Four good steps to always get correctly encoded UTF-8 text:
1) Run this query before any other query:
mysql_query("set names 'utf8'");
2) Add this to your HTML head:
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
3) Add this at top of your PHP code:
header("Content-Type: text/html;charset=UTF-8");
4) Save your file with UTF-8 without BOM encoding using Notepad++ or any other good text-editor / IDE.
Set the charset as utf8 as follows:
$conn = new mysqli($servername, $username, $password, $dbname);
$conn->set_charset("utf8");
You are not defining your HTML page as UTF-8. See this question on ways to do that.
You may also need to set your database connection explicitly to UTF8. Doing a
mysql_query("SET NAMES utf8;");
^
Put it right under your database connection script or include and MAKE sure you have it placed before you do any necessary queries. Also, for collocation please take the time to make sure your
setting it for your proper syntax type and general_ci seems working good for me when used. As a finale, clear your cache after banging your head, set your browser to proper encoding toolbar->view->encoding
Setting the connection to UTF8 after establishing the connection takes care of the problem. Don't do this if the first step already works.
UTF-8 content from MySQL table with PDO
To correctly get latin characters and so on from a MySQL table with PDO,
there is an hidden info coming from a "User Contributed Note" in the PHP manual website
(the crazy thing is that originally, that contribution was downvoted, now luckily turned to positive .. sometime some people need to got blamed)
my credits credits go to this article that pulled the solution and probably made that "User Contributed Note" to turn positive
If you want to have a clean database connection with correct Unicode characters
$this->dbh = new PDO(
"mysql:host=".DB_HOST.";dbname=".DB_NAME.";charset=utf8",
DB_USER,
DB_PASS);
try this :
mysql_set_charset('utf8', $yourConnection);
Old ways have been deprecated. If you are using PHP > 5.0.5 and using mysqli the new syntax is now:
$connection->set_charset("utf8")
Where $connection is a reference to your connection to the DB.
I tried several solutions but the only one that worked
is that of Hari Dass:
$conn->set_charset("utf8");