' . join('', $err) . ''); } echo 'OK'; function essais_multiple_de_trois() { $essais = array( 0 => array( 0 => 0, 1 => 0, ), 1 => array( 0 => -0, 1 => -1, ), 2 => array( 0 => 0, 1 => 1, ), 3 => array( 0 => 3, 1 => 2, ), 4 => array( 0 => 3, 1 => 3, ), 5 => array( 0 => 3, 1 => 4, ), 6 => array( 0 => 6, 1 => 5, ), 7 => array( 0 => 6, 1 => 6, ), 8 => array( 0 => 6, 1 => 7, ), 9 => array( 0 => 9, 1 => 10, ), 10 => array( 0 => 21, 1 => 20, ), 11 => array( 0 => 30, 1 => 30, ), 12 => array( 0 => 51, 1 => 50, ), 13 => array( 0 => 99, 1 => 100, ), 14 => array( 0 => 999, 1 => 1000, ), 15 => array( 0 => 9999, 1 => 10000, ), ); return $essais; }