AladinDridi/gist:b2aac59c7b0a9369a53d3ad7f85e8901

## gistfile1.txt
<html>
    <body>
        <form action="localhost/change_role_7%C3%A8me.php" method="get">
            <input type="submit" name="on" value="on">
            <input type="submit" name="off" value="off">
        </form>
    </body>
</html>
<?php
    if(isset($_GET['on'])) {
        onFunc();
    }
    if(isset($_GET['off'])) {
        offFunc();
    }

    function onFunc(){
global $current_user;
get_currentuserinfo();

       if(user_can($current_user ,'7eme') )
   {
       // Remove role
       $current_user->remove_role( '7eme' );

       // Add role
       $current_user->add_role( 'contributor' );

   }
        echo "..Merci";
    }
    function offFunc(){
        echo "Bonne chance dans le prémiére fois";
    }?>

    ---------------------------
    page change_role.php
    <?php
function update_roles()
{
   global $wpdb;
   // Get the author
   $author = wp_get_current_user();
   // Not sure if $author and $u are the same object I suspect they are.
   // so this may not be necessary, but I found this code elsewhere.
   // You may be able to do without this and just replace $u with $author later in the code.
   // Get post by author
   $posts = $wpdb->get_results("SELECT * FROM $wpdb->posts WHERE post_author = " . $author->ID );
   $numPost = count($posts);
   // Do the checks to see if they have the roles and if not update them.
   if($numPost > 0 && $numposts <= 10 && current_user_can('7eme') )
   {
       // Remove role
       $author->remove_role( '7eme' );
       // Add role
       $author->add_role( 'contributor' );
   }
}
add_action('publish_post', 'update_roles');
?>
	<html>
	<body>
	<form action="localhost/change_role_7%C3%A8me.php" method="get">
	<input type="submit" name="on" value="on">
	<input type="submit" name="off" value="off">
	</form>
	</body>
	</html>
	<?php
	if(isset($_GET['on'])) {
	onFunc();
	}
	if(isset($_GET['off'])) {
	offFunc();
	}

	function onFunc(){
	global $current_user;
	get_currentuserinfo();

	if(user_can($current_user ,'7eme') )
	{
	// Remove role
	$current_user->remove_role( '7eme' );

	// Add role
	$current_user->add_role( 'contributor' );

	}
	echo "..Merci";
	}
	function offFunc(){
	echo "Bonne chance dans le prémiére fois";
	}?>

	---------------------------
	page change_role.php
	<?php
	function update_roles()
	{
	global $wpdb;
	// Get the author
	$author = wp_get_current_user();
	// Not sure if $author and $u are the same object I suspect they are.
	// so this may not be necessary, but I found this code elsewhere.
	// You may be able to do without this and just replace $u with $author later in the code.
	// Get post by author
	$posts = $wpdb->get_results("SELECT * FROM $wpdb->posts WHERE post_author = " . $author->ID );
	$numPost = count($posts);
	// Do the checks to see if they have the roles and if not update them.
	if($numPost > 0 && $numposts <= 10 && current_user_can('7eme') )
	{
	// Remove role
	$author->remove_role( '7eme' );
	// Add role
	$author->add_role( 'contributor' );
	}
	}
	add_action('publish_post', 'update_roles');
	?>