html5 - 다음 명령문이 PHP에 추가되고 빈 페이지가 나타납니다. zhengchang 페이지를 삭제합니다.-PHP 튜토리얼-php.cn

html5 - 다음 명령문이 PHP에 추가되고 빈 페이지가 나타납니다. zhengchang 페이지를 삭제합니다.

WBOY

풀어 주다： 2016-08-18 09:16:13

원래의

1540명이 탐색했습니다.

다음 문을 며칠 동안 추가하면 페이지가 공백이 됩니다. 정상적으로 삭제하세요
echo "isset($tireqty)".isset($tireqty)."
"; >echo "isset($nothere)".isset($nothere)."
"
echo "isset($tireqty)".empty($tireqty)."
";
echo "isset($nothere)".empty($nothere)."
";

전체 코드는 아래에 나열되어 있습니다.

<code>    <head>
            <title>Bob's Auto Parts -Order Result</title>
    </head>
    <body>
            <h1>Bos's Auto Parts</h1>
            <h2>Order Result</h2>

            <?php

                    define('TIREPRICE',100);
                    define('OILPRICE',10);
                    define('SPARKPRICE',4);
                    $tireqty  = $_POST['tireqty'];
                    $oilqty   = $_POST['oilqty'];
                    $sparkqty = $_POST['sparkqty'];
                    echo " <p>Order processed at".date('H:i, jS F Y')."</p>";
                    echo " <p>Your order is as follow:</p>";
                    echo $tireqty." tireqty<br/>";
                    echo $oilqty." oilqty<br/>";
                    echo $sparkqty." spark plugs <br/>";

                    $totalqty = 0;
                    $totalqty = $tireqty + $oilqty + $sparkqty;
                    echo "Items ordered: ".$totalqty."<br/>";
                    $totalamount = 0.00;
                    $totalamount = $tireqty * TIREPRICE + 
                    $oilqty * OILPRICE + $sparkqty * SPARKPRICE;

                    echo "Subtotal: $".number_format($totalamount,2)."<br/>";

                    $taxrate = 0.10;        //total sales tax is 10%
                    $totalamount = $totalamount * (1 + $taxrate);
                    echo "Total including tax: $".number_format($totalamount,2)."<br/>"</code>

로그인 후 복사

// echo "isset($tireqty)".isset($tireqty)."
"

// echo "isset($nothere)".isset($nothere)."
";
// echo "isset($tireqty)".empty($tireqty)."
";
// echo "isset($nothere)" .empty($nothere)."
";

<code>            ?>
    </body></code>

로그인 후 복사

답글 내용:

다음 문을 며칠 동안 추가하면 페이지가 공백이 됩니다. 정상적으로 삭제하세요

echo "isset($tireqty)".isset($tireqty)."
"; >echo "isset($nothere)".isset($nothere)."
"
echo "isset($tireqty)".empty($tireqty)."
";
echo "isset($nothere)".empty($nothere)."
";

전체 코드는 아래에 나열되어 있습니다.

// echo "isset($tireqty)".isset($tireqty)."
"

<code>    <head>
            <title>Bob's Auto Parts -Order Result</title>
    </head>
    <body>
            <h1>Bos's Auto Parts</h1>
            <h2>Order Result</h2>

            <?php

                    define('TIREPRICE',100);
                    define('OILPRICE',10);
                    define('SPARKPRICE',4);
                    $tireqty  = $_POST['tireqty'];
                    $oilqty   = $_POST['oilqty'];
                    $sparkqty = $_POST['sparkqty'];
                    echo " <p>Order processed at".date('H:i, jS F Y')."</p>";
                    echo " <p>Your order is as follow:</p>";
                    echo $tireqty." tireqty<br/>";
                    echo $oilqty." oilqty<br/>";
                    echo $sparkqty." spark plugs <br/>";

                    $totalqty = 0;
                    $totalqty = $tireqty + $oilqty + $sparkqty;
                    echo "Items ordered: ".$totalqty."<br/>";
                    $totalamount = 0.00;
                    $totalamount = $tireqty * TIREPRICE + 
                    $oilqty * OILPRICE + $sparkqty * SPARKPRICE;

                    echo "Subtotal: $".number_format($totalamount,2)."<br/>";

                    $taxrate = 0.10;        //total sales tax is 10%
                    $totalamount = $totalamount * (1 + $taxrate);
                    echo "Total including tax: $".number_format($totalamount,2)."<br/>"</code>

로그인 후 복사

// echo "isset($nothere)".isset($nothere)."
";

// echo "isset($tireqty)".empty($tireqty)."
";
// echo "isset($nothere)" .empty($nothere)."
";