Question

为什么我无法将错误显示在select帖子下面的代码上

PHP验证：

if ($movie == "select") {
            $errormovie .= 'Please select a favourite movie';
        }

HTML：

<select name='movie' id="movie">
                        <option value="select" >Select your favourite movie:</option>
                        <option value="Smokey and the Bandit 1977" <?php selected(@$movie, 1) ?>>Smokey and the Bandit 1977</option>
                        <option value="Good Morning, Vietnam " <?php selected(@$movie, 2) ?>>Good Morning, Vietnam </option>
                        <option value="Big Trouble in Little China 1986" <?php selected(@$movie, 3) ?>>Big Trouble in Little China 1986</option>
                        <option value="Dead Poets Society 1989" <?php selected(@$movie, 4) ?>>Dead Poets Society 1989</option>
                        <option value="Braveheart 1995" <?php selected(@$movie, 5) ?>>Braveheart 1995</option>
                        <option value="Black Sheep 1996" <?php selected(@$movie, 6) ?>>Black Sheep 1996</option>
                        <option value="What Dreams May Come 1998" <?php selected(@$movie, 7) ?>>What Dreams May Come 1998</option>
                        <option value="Patch Adams 1998" <?php selected(@$movie, 8) ?>>Patch Adams 1998</option>  
                        <option value="The Green Mile 1999" <?php selected(@$movie, 9) ?>>The Green Mile 1999</option>
                        <option value="Jakob the Liar 1999" <?php selected(@$movie, 10) ?>>Jakob the Liar 1999 </option>
                        <option value="The Skulls 2000" <?php selected(@$movie, 11) ?>>The Skulls 2000</option>
                        <option value="Kangaroo Jack 2003" <?php selected(@$movie, 12) ?>>Kangaroo Jack 2003</option>
                        <option value="The Butterfly Effect 2004" <?php selected(@$movie, 13) ?>>The Butterfly Effect 2004</option>
                        <option value="Starsky and Hutch 2004" <?php selected(@$movie, 14) ?>>Starsky and Hutch 2004</option>
                        <option value="Slumdog Millionaire 2008" <?php selected(@$movie, 15) ?>>Slumdog Millionaire 2008</option>
                        <option value="Inception 2010" <?php selected(@$movie, 16) ?>>Inception 2010</option>     
                        <option value="The Hunger Games 2012" <?php selected(@$movie, 17) ?>>The Hunger Games 2012</option> 


<span class="error">* <?php echo $errormovie;?></span>  


</select>

Answer 1

如果这是您的实际代码，那么您已将span元素放在<{em}里面的select元素中，这当然是无稽之谈 - select可以仅包含option或optgroup元素作为子级...因此，浏览器将忽略此位置的span元素。

将放在select元素的之外。

Answer 2

你的代码片段没有太多内容，但如果我不得不猜测，我会说你错误地假设$ movie变量的值为“select”。尝试使用var_dump函数检查$ movie变量的内容。

Answer 3

试试这个：

if ($_POST["movie"] == "select") {
        $errormovie .= 'Please select a favourite movie';
    }

PHP验证错误未显示在下拉列表中

3 个答案: