Can anybody helps me in how to change the encoding of the database, because when I try to execute the following query :
 $stmt=$conn->prepare("INSERT INTO photo (id_user,name) VALUES(:id_user,:name)");
    $stmt->execute(array(
        "id_user" => 1,
        "name" => 'allèèeeâ'
        ));
In the database I get the following result : allèèeeâ. I tried to run the following command to solve the problem :
ALTER DATABASE databasename CHARACTER SET utf8 COLLATE utf8_unicode_ci;
ALTER TABLE tablename CONVERT TO CHARACTER SET utf8 COLLATE utf8_unicode_ci;
But it did not solve the problem.
Thank you for your help.
 
    