<?php $options = [ 'default' => 0, 'min_range' => 0, 'max_range' => 999, ]; $id = filter_input(INPUT_GET, 'id', FILTER_SANITIZE_NUMBER_INT, ['options' => $options]); $link = sprintf('https://www.stronka.pl/index.php?id=%d', $id); echo '<a href="'. $link .'"><img src="https://www.stronka.pl/button.png"></a>';
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