PHP表單不顯示正確的錯誤信息

-1

有沒有人有任何想法，爲什麼這是顯示錯誤信息？我厭倦了空洞和布爾測試。PHP表單不顯示正確的錯誤信息

謝謝！

<p>You have nearly a full tank of fuel at <?php echo $intFuelGallons ?> gallons.</p> 
    <p> Do you want to top off your tank? 
     <label> 
     <input type="radio" name="TankTopOff" value="Yes" id="TankTopOff"> 
     Yes</label> 
     <label> 
     <input type="radio" name="TankTopOff" value="No" id="TankTopOff"> 
     No</label> 
    </p> 
    <p><?php echo $varWornTires ?> of your tires are worn. Do you want to replace any of them?</p> 
    <label> 
     <input type="radio" name="TireReplace" value="Yes" id="TireReplace"> 
     Yes</label> 
    <label> 
    <label> 
     <input type="radio" name="TireReplace" value="No" id="TireReplace"> 
     No</label> 
    <label> 
<?php 
if ((($_POST['TankTopOff'])!=="No") || (($_POST['TankTopOff'])!=="Yes")) { 
$errorMessage .= "<li><h5>You forgot to choose if you want to top off your tank! " . ($_POST['TankTopOff']) . "</h5></li>"; 
}; 
if ((($_POST['TireReplace'])!=="No") || (($_POST['TireReplace'])!=="Yes")) { 
$errorMessage .= "<li><h5>You forgot to choose if you want to replace any tires! ". ($_POST['TireReplace']) . "</h5></li>"; 
}; 
?>

來源

2013-05-03 Chad J Treadway

首先，代之以''errorMessage' $ errorMessage' – 6339 2013-05-03 11:36:22

使用

if(empty($_POST['TankTopOff']))

代替

if ((($_POST['TankTopOff'])!=="No") || (($_POST['TankTopOff'])!=="Yes"))

，並做相同的TireReplace

來源

2013-05-03 11:48:19 m1kfb

的布爾表達式將永遠不會是假：

(($_POST['TankTopOff'])!=="No") || (($_POST['TankTopOff'])!=="Yes")

翻譯爲EITHER the TankTopOff is something else than "No" OR TankTopOff is something else than "Yes";這總是如此。

也許你只需要用&&替換||（或者更好 - 「和」，如果如some PHP framework developers所建議的那樣）。

來源

2013-05-03 11:32:53 naivists

B他工作但我喜歡空，因爲它不那麼複雜。我不知道爲什麼它第一次不工作...可能太靠近了！ – 2013-05-03 14:36:36

你應該做

<?php 
    if ($_POST['TankTopOff']=='') { 
     $errorMessage .= "<li><h5>You forgot to choose if you want to top off your tank! </h5></li>"; 
    }; 
    if ($_POST['TireReplace'])=='') { 
     $errorMessage .= "<li><h5>You forgot to choose if you want to replace any tires!</h5></li>"; 
    }; 
    ?>

來源

2013-05-03 11:36:36 sven

PHP表單不顯示正確的錯誤信息

回答

相關問題