html中的php代码没有按预期工作答案

【问题标题】：Php code in html not working as expectedhtml中的php代码没有按预期工作
【发布时间】：2014-06-27 09:25:54
【问题描述】：

我想使用此代码从我的数据库中获取结果并以 html 格式显示，但这并没有发生。得到所有奇怪的结果，我无法修复它。

它显示 } ? > 最后在我的网页上想知道为什么。而且我也无法从我的数据库中获得任何结果。

数据库是正确的，我认为 html 和 php 代码中存在一些错误（html 标签中的 php 变量）。

<?php  
while($row = mysqli_fetch_array($result)) {

$price = ($row['ISBN']%1000);
echo $price;
<li>
        <div class="book-display-bg">
            <div class="book-display-placeholder">
                <div class="book-display-container">
                    <div class="book-display-centered">
                        <a href='product/taqatu-niran-min-yaumiyat-al-intifada-as-suriya-9789953892368-(105523).html'  >
                            <img src=''$row['Image_URL_M']'' style='border: 0;' alt=''$row['Book_Title']''/>
                        </a>
                    </div>
                </div>
            </div>
        </div>    
        <div class="book-display-details">
            <div class="book-display-title"><p><a href='product/taqatu-niran-min-yaumiyat-al-intifada-as-suriya-9789953892368-(105523).html'  title=''$row['Book_Title']'' >$row['Book_Title']</a></p></div>
            <div class="book-display-author"><p>$row['Book_Author']</p></div>
            <div id="ctl00_ctl00_CMSContentMasterPlaceHolder_cphContent1_ctl01_ProductSummary1_DataList1_ctl02_divStock" class="book-display-stock"></div>
            <div class="book-display-price">$price</div>
            <input type="submit" name="ctl00$ctl00$CMSContentMasterPlaceHolder$cphContent1$ctl01$ProductSummary1$DataList1$ctl02$btnBuyNow" value="add to basket" id="ctl00_ctl00_CMSContentMasterPlaceHolder_cphContent1_ctl01_ProductSummary1_DataList1_ctl02_btnBuyNow" title="add to basket" class="ecom-add-basket" />
        </div>        
        <div class="clear"></div>
    </li>
}
?>

提前致谢

【问题讨论】：

您忘记为 html 内容添加回显。

标签： php mysql html mysqli

【解决方案1】：

您忘记为 li 元素添加 echo。您可以尝试以下操作：

<?php  
while($row = mysqli_fetch_array($result)) {

$price = ($row['ISBN']%1000);
echo $price; ?>
<li>
        <div class="book-display-bg">
            <div class="book-display-placeholder">
                <div class="book-display-container">
                    <div class="book-display-centered">
                        <a href='product/taqatu-niran-min-yaumiyat-al-intifada-as-suriya-9789953892368-(105523).html'  >
                            <img src='<?php echo $row['Image_URL_M']; ?>' style='border: 0;' alt='<?php echo $row['Book_Title']; ?>'/>
                        </a>
                    </div>
                </div>
            </div>
        </div>    
        <div class="book-display-details">
            <div class="book-display-title"><p><a href='product/taqatu-niran-min-yaumiyat-al-intifada-as-suriya-9789953892368-(105523).html'  title='<?php echo $row['Book_Title']; ?>' ><?php echo $row['Book_Title']; ?></a></p></div>
            <div class="book-display-author"><p><?php echo $row['Book_Author']; ?></p></div>
            <div id="ctl00_ctl00_CMSContentMasterPlaceHolder_cphContent1_ctl01_ProductSummary1_DataList1_ctl02_divStock" class="book-display-stock"></div>
            <div class="book-display-price"><?php echo $price; ?></div>
            <input type="submit" name="ctl00$ctl00$CMSContentMasterPlaceHolder$cphContent1$ctl01$ProductSummary1$DataList1$ctl02$btnBuyNow" value="add to basket" id="ctl00_ctl00_CMSContentMasterPlaceHolder_cphContent1_ctl01_ProductSummary1_DataList1_ctl02_btnBuyNow" title="add to basket" class="ecom-add-basket" />
        </div>        
        <div class="clear"></div>
    </li><?php
}
?>

或者你可以这样做：

<?php  
while($row = mysqli_fetch_array($result)) {

$price = ($row['ISBN']%1000);
echo $price;
echo '<li>
        <div class="book-display-bg">
            <div class="book-display-placeholder">
                <div class="book-display-container">
                    <div class="book-display-centered">
                        <a href="product/taqatu-niran-min-yaumiyat-al-intifada-as-suriya-9789953892368-(105523).html"  >
                            <img src="' . $row['Image_URL_M'] . '" style="border: 0;" alt="$row[\'Book_Title\']"/>
                        </a>
                    </div>
                </div>
            </div>
        </div>    
        <div class="book-display-details">
            <div class="book-display-title"><p><a href="product/taqatu-niran-min-yaumiyat-al-intifada-as-suriya-9789953892368-(105523).html"  title="' . $row['Book_Title'] . '" >' . $row['Book_Title'] . '</a></p></div>
            <div class="book-display-author"><p> ' .$row['Book_Author'] . '</p></div>
            <div id="ctl00_ctl00_CMSContentMasterPlaceHolder_cphContent1_ctl01_ProductSummary1_DataList1_ctl02_divStock" class="book-display-stock"></div>
            <div class="book-display-price">' . $price . '</div>
            <input type="submit" name="ctl00$ctl00$CMSContentMasterPlaceHolder$cphContent1$ctl01$ProductSummary1$DataList1$ctl02$btnBuyNow" value="add to basket" id="ctl00_ctl00_CMSContentMasterPlaceHolder_cphContent1_ctl01_ProductSummary1_DataList1_ctl02_btnBuyNow" title="add to basket" class="ecom-add-basket" />
        </div>        
        <div class="clear"></div>
    </li>';
}
?>

希望对你有帮助

【讨论】：

我也应该为图像元素添加回声吗？
您使用的是哪种方法？方法在顶部或另一个
我用的是另一种方法
感谢您的评论。我在代码中进行了更改。你可以用那个。我只是将变量与 echo 中的 HTML 代码连接起来
谢谢。我们如何在 mysqli 查询中使用 php 变量？ $result = mysqli_query($con,"((SELECT * FROM bx_books where Book_Title like '%$search%') union (SELECT * FROM bx_books where Book_Author like '%$search%') union (SELECT * FROM bx_books where ISBN like '%$search%'))");我想在查询中使用 $search

【解决方案2】：

请正确使用开闭大括号。

如果你想在php中使用HTMl代码，那么你所要做的就是回显

例如：

<?php  
while($row = mysqli_fetch_array($result)) {
   echo "<div class='book-display-centered'>{$row['Book_Author']}</div>"
}
?>

而且由于您在 html 中有大量数据，您可以像这样使用它

 <?php  
    while($row = mysqli_fetch_array($result)) {
     ?>
         <div class='book-display-centered'><?php echo $row['Book_Author'] ?></div>
    <?php 
}
    ?>

【讨论】：

【解决方案3】：

您必须在它们之前回显 html 内容或关闭 php 标签

试试这个：

<?php  
while($row = mysqli_fetch_array($result)) {

$price = ($row['ISBN']%1000);
echo $price;
?>
<li>
        <div class="book-display-bg">
            <div class="book-display-placeholder">
                <div class="book-display-container">
                    <div class="book-display-centered">
                        <a href='product/taqatu-niran-min-yaumiyat-al-intifada-as-suriya-9789953892368-(105523).html'  >
                            <img src="<?php echo $row['Image_URL_M']?>" style='border: 0;' alt=" <?php echo $row['Book_Title']?>"/>
                        </a>
                    </div>
                </div>
            </div>
        </div>    
        <div class="book-display-details">
            <div class="book-display-title"><p><a href='product/taqatu-niran-min-yaumiyat-al-intifada-as-suriya-9789953892368-(105523).html'  title="<?php echo $row['Book_Title'] ?>" > <?php echo $row['Book_Title']?></a></p></div>
            <div class="book-display-author"><p><?php echo $row['Book_Author'] ?></p></div>
            <div id="ctl00_ctl00_CMSContentMasterPlaceHolder_cphContent1_ctl01_ProductSummary1_DataList1_ctl02_divStock" class="book-display-stock"></div>
            <div class="book-display-price"><?php echo $price ?></div>
            <input type="submit" name="ctl00$ctl00$CMSContentMasterPlaceHolder$cphContent1$ctl01$ProductSummary1$DataList1$ctl02$btnBuyNow" value="add to basket" id="ctl00_ctl00_CMSContentMasterPlaceHolder_cphContent1_ctl01_ProductSummary1_DataList1_ctl02_btnBuyNow" title="add to basket" class="ecom-add-basket" />
        </div>        
        <div class="clear"></div>
    </li>
<?php 
}
?>

【讨论】：

【解决方案4】：

使用下面的代码... while($row = mysqli_fetch_array($result)) {

$price = ($row['ISBN']%1000);
echo $price;
?>
<li>
    <div class="book-display-bg">
        <div class="book-display-placeholder">
            <div class="book-display-container">
                <div class="book-display-centered">
                    <a href='product/taqatu-niran-min-yaumiyat-al-intifada-as-suriya-9789953892368-(105523).html'  >
                        <img src=''$row['Image_URL_M']'' style='border: 0;' alt=''$row['Book_Title']''/>
                    </a>
                </div>
            </div>
        </div>
    </div>    
    <div class="book-display-details">
        <div class="book-display-title"><p><a href='product/taqatu-niran-min-yaumiyat-al-intifada-as-suriya-9789953892368-(105523).html'  title=''$row['Book_Title']'' >$row['Book_Title']</a></p></div>
        <div class="book-display-author"><p>$row['Book_Author']</p></div>
        <div id="ctl00_ctl00_CMSContentMasterPlaceHolder_cphContent1_ctl01_ProductSummary1_DataList1_ctl02_divStock" class="book-display-stock"></div>
        <div class="book-display-price">$price</div>
        <input type="submit" name="ctl00$ctl00$CMSContentMasterPlaceHolder$cphContent1$ctl01$ProductSummary1$DataList1$ctl02$btnBuyNow" value="add to basket" id="ctl00_ctl00_CMSContentMasterPlaceHolder_cphContent1_ctl01_ProductSummary1_DataList1_ctl02_btnBuyNow" title="add to basket" class="ecom-add-basket" />
    </div>        
    <div class="clear"></div>
</li>
<?php
}
?>

【讨论】：