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decimal_to_binary

<code> , <form action=DQtest.phpDQ method=DQpostDQ name=DQconvertDQ> , <p><input name=DQconvertDQ type=DQtextDQ size=DQ20DQ > , <p><input type=DQsubmitDQ value=DQconvertDQ ></p> , </form> , , <?php , , $dec = $_POSTDQconvertDQ; , while ($dec>=1){ , $bin = $dec % 2; , $dec = round($dec/2, 0, PHP_ROUND_HALF_DOWN); , $arr = $bin; , , } , , echo implode(array_reverse($arr)); , , ?> , , </code>