Using str_split on a UTF-8 encoded string

Question

I\'m currently working on a project, and instead of using regular MySQL queries I thought I\'d go ahead and learn how to use PDO.

I have a table called contestants,

Answer 1

The str_split function splits by byte, not by character. You'll need mb_split.

Answer 2

str_split does not work with multi-byte characters, it will only return the first byte - thus invalidating your characters. you could use mb_split.

Answer 3

Mind that the utf8 declaration used in your connect-string is reported to be not working. In the comments on php.net I frequently see this alternative:

$dbHandle = new PDO("mysql:host=$dbHost;dbname=$dbName;charset=utf8", $dbUser, $dbPass,
                    array(PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES 'utf8'"));

Answer 4

UTF-8 PROBLEMS & SOLUTIONS by PHP FUNCTIONS

1. How to Save UTF-8 Charterers (mathematical string,special chars like 92 ÷ 8 ÷ 2 = ? ) ?

Ans. $string =utf8_encode('92 ÷ 8 ÷ 2 = ?');

2. How to print UTF-8 Charterers From Database ?

Ans. echo utf8_decode($string);

Note: If you do not want to do this by using encoding/decoding you can do this via.

1. if you are using mysqli_query() then

$conn = mysqli_connect('localhost','db_username','password','your_database_name');
mysqli_set_charset($conn,"utf8"); 

2.If you are using PDO then

class Database extends PDO{
    function __construct() {
        parent::__construct("mysql:host=localhost;dbname=your_db_name","gurutslz_root","Your_db_password",array(PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES 'utf8'"));
    }
}
$conn=new Database();

Answer 5

this work for me... hope its usefull.

ensure that the database, apache and every config was in utf8.

PDO OBJECT

            $dsn = 'mysql:host=' . Config::read('db.host') . ';dbname=' . config::read('db.basename') .';charset=utf8'. ';port=' . Config::read('db.port') .';connect_timeout=15';
            $user = Config::read('db.user');
            $password = Config::read('db.password');
            $this->dbh = new PDO($dsn, $user, $password,array(PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES 'utf8'"));
            $this->dbh->setAttribute(PDO::ATTR_EMULATE_PREPARES, false);

it work if not using another function like str_word_count.

USING str_word_count you need to use utf8_decode(utf8_encode)..

function cortar($str)
{
    if (20>$count=str_word_count($str)) {
        return $str;
    }
    else
    {
        $array = str_word_count($str,1,'.,-0123456789()+=?¿!"<>*ñÑáéíóúÁÉÍÓÚ@|/%$#¡');
        $s='';
        $c=0;
        foreach ($array as $e) {
            if (20>$c) {
                if (19>$c) {
                $s.=$e.' ';
                }
                else
                {
                $s.=$e;
                }               
            }
            $c+=1;
        }
        return utf8_decode(utf8_encode($s));
    }
}

function returs string with 20 words.

Answer 6

UTF-8 Using PDO

problems when writing international (even Chinese and Thailandic) characters to the database

there may be more ways to make this work. I am not an expert, just a tech-freak, interested to understand all this. In Linux and Windows I have set up a few CMS (content-managing-systems), using a sample from the following website:

'http://www.elated.com/articles/cms-in-an-afternoon-php-mysql'

The sample is using PDO for insert, update and delete.

It took me a few hours to find a solution. Whatever I did, I always concluded differences between the data in my forms and in the phpmyadmin/heidi -views

I followed the hints of: 'https://mathiasbynens.be/notes/mysql-utf8mb4' but there was still no success

In my CMS-structure there is a file 'Config.php': After reading this webpage I changed the line

    define( 'DB_DSN', 'mysql:host=localhost;dbname=mythings);

to

    define( 'DB_DSN', 'mysql:host=localhost;dbname=mythings;charset=utf8');

Now all works fine.