Error

PHP Warningyii\base\ErrorException

A non-numeric value encountered

$_GET = [
    'id' => '6643',
    'url' => 'vokietijos-roberto-kocho-institutas-kelia-aliarma-del-pabegeliu-atnesamu-epidemiju',
    'eiti' => 'atgal',
    'pries' => '6643',
];