实现10进制转化成其它进制

Posted 2020-07-03

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<?php
/**
 * Created by PhpStorm.
 * User: lenovo
 * Date: 2016/4/1
 * Time: 17:10
 */
    header(‘content-type:text/html;charset=utf-8‘);
    // 获取被转化数字及转化进制
    $num = isset($_POST[‘num‘])?$_POST[‘num‘]:‘‘;
    $connect = isset($_POST[‘connect‘])?$_POST[‘connect‘]:‘‘;
    // 用于保存selected，来实现转化关系的显示
    $mark1=$mark2=$mark3="";
    if(!$connect){
        $mark1 = "selected";
    }
    // 判断转化关系并实现转化
    switch($connect){
        case "10to2" :
            $score = decbin($num);
            $mark1 = "selected";
            break;
        case "10to8" :
            $score = decoct($num);
            $mark2 = "selected";
            break;
        case "10to16" :
            $score = dechex($num);
            $mark3 = "selected";
            break;
    }
?>
<html>
<head>
    <title>数字转换</title>
    <meta charset="UTF-8">
</head>
<body>
    <form action="shuzizhuanhuan.php" method="post">
        数：<input type="text" name="num" id="input2" value = "<?php echo $num; ?>"/>
        <select name="connect" id ="select1" >
            <option value="10to2" <?php echo $mark1; ?>>10to2</option>
            <option value="10to8" <?php echo $mark2; ?>>10to8</option>
            <option value="10to16" <?php echo $mark3; ?>>10to16</option>
        </select>
        <input type="submit" value="转换">

        <input type="text" value="<?php $score = isset($score)?$score:‘‘; echo $score; ?>" id="input1"/>
    </form>

</body>
</html>

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