UTF8 on display, wrong in database because twice converted (solved)

[client]
default-character-set=utf8

[mysql]
default-character-set=utf8


[mysqld]
collation-server = utf8_unicode_ci
init-connect='SET NAMES utf8'
character-set-server = utf8

self::$connexion->setAttribute(PDO::MYSQL_ATTR_INIT_COMMAND, "SET NAMES 'utf8'");

if (self::$dbType == "mysql") {
      ini_set('mysql.connect_timeout', 10);
    }
    try {
    	$dsn = self::$dbType.':host='.self::$dbHost.';port='.self::$dbPort.';dbname='.self::$dbName; 	  
    	self::$connexion = new PDO($dsn, self::$dbUser, self::$dbPassword);
    	self::$connexion->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    	// Could solve some erroneous default storing in non utf8 format
    	self::$connexion->setAttribute(PDO::MYSQL_ATTR_INIT_COMMAND, "SET NAMES 'utf8'");
    }