我的HTML正文中有这个功能：
<ul>
<!-- Dynamic insertion of projects with PHP function -->
<?php projectGallery(); ?>
</ul>
这是PHP函数本身：
// This function shows a list of projects on our home page
function projectGallery(){
include 'includes/config.php';
$result = mysqli_query($con,"SELECT * FROM project");
while($row = mysqli_fetch_array($result)) {
echo "<li>
<a href='#' data-reveal-id='".$row['project_id']."' data-animation='fade'>
<div class='project'>
<img class='project_image' src='images/upload/".$row['project_afbeelding']. "' />
<h2 class='title'>".$row['project_titel']."</h2>
</div>
</a>
</li>" ;
};
};
好吧，如果你还在阅读，尽管丑陋...我的问题是，是否有更清晰的方法来编写这个回声部分？没有无尽的HTML字符串。
答案 0 :(得分：2)
就个人而言，我总是这样做。当有一个干净的HTML源时，我爱。
function projectGallery(){
include 'includes/config.php';
$result = mysqli_query($con,"SELECT * FROM project");
while($row = mysqli_fetch_array($result)) { ?>
<li><a href="#" data-reveal-id="<?php echo $row['project_id']; ?>" data-animation="fade">
<div class="project">
<img class="project_image" src="images/upload/<?php echo $row['project_afbeelding']; ?>" />
<h2 class="title"><?php echo $row['project_titel']; ?></h2>
</div>
</a>
</li><?php
} ?>
这样，您的IDE将分别识别HTML和PHP内容，从而减少出错的可能性。然而，如果扩展，这是一个混乱的来源。但正如我所说，对我来说，这是很多东西的源代码。
答案 1 :(得分：1)
您有几个选择。第一个是简单地结束PHP标记：
function projectGallery(){
include 'includes/config.php';
$result = mysqli_query($con,"SELECT * FROM project");
while($row = mysqli_fetch_array($result))
{
?>
<li>
<a href='#' data-reveal-id='<?php echo $row['project_id']; ?>' data-animation='fade'>
<div class='project'>
<img class='project_image' src='images/upload/<?php echo $row['project_afbeelding']; ?>' />
<h2 class='title'><?php echo $row['project_titel']; ?></h2>
</div>
</a>
</li>
<?php
};
};
另一种方法是创建一个回显的字符串，以便将来进行更多的编辑：
function projectGallery(){
include 'includes/config.php';
$result = mysqli_query($con,"SELECT * FROM project");
$output = '';
while($row = mysqli_fetch_array($result))
{
$output .= "<li>";
$output .= "<a href='#' data-reveal-id='".$row['project_id']."' data-animation='fade'>";
$output .= "<div class='project'>";
$output .= "<img class='project_image' src='images/upload/".$row['project_afbeelding']. "' />";
$output .= "<h2 class='title'>".$row['project_titel']."</h2>";
$output .= "</div>";
$output .= "</a>";
$output .= "</li>";
};
echo $output;
};
两者都有其优点，两者都更易于管理和适应日期
答案 2 :(得分：1)
在PHP模式下，你根本不应该回复html代码。 这使得你的代码难以阅读，你疯狂地放置'或'而你的IDE（如果你有的话）无法帮助你完成HTML自动完成。
你应该总是这样：
<?php while($row = mysqli_fetch_array($result)) { ?>
<li>
<a href="#" data-reveal-id="<?=$row['project_id']?>" data-animation="fade">
<div class="project">
<img class="project_image" src="images/upload/<?=$row['project_afbeelding']?>" />
<h2 class="title"><?=$row['project_titel']?></h2>
</div>
</a>
</li>
<?php } ?>
因此，只需在需要时再次打开和关闭PHP，并将其关闭一段时间。
与以下内容完全相同：
<?="123"?>
但请注意，某些网络服务器配置为短标签
答案 3 :(得分：0)
试试吧
在html中：
<?php echo projectGallery(); ?>
在功能中：
return "<li><a href='#' data-reveal-id='".$row['project_id']."' data-animation='fade'><div class='project'><img class='project_image' src='images/upload/".$row['project_afbeelding']. "' /><h2 class='title'>".$row['project_titel']."</h2></div></a></li>" ;
答案 4 :(得分：0)
function projectGallery(){
include 'includes/config.php';
$result = mysqli_query($con,"SELECT * FROM project");
while($row = mysqli_fetch_array($result)) {
?>
<li>
<a href='#' data-reveal-id='<?=$row['project_id']?>' data-animation='fade'>
<div class='project'>
<img class='project_image' src='images/upload/<?=$row['project_afbeelding']?>' />
<h2 class='title'><?=$row['project_titel']?></h2>
</div>
</a>
</li>
答案 5 :(得分：0)
您可以创建一个函数来获取文件和值数组，并将这些值提取到受限上下文中的变量中，包含文件，捕获结果输出，并以字符串形式返回：
function render_with_values($file, array $variables = null) {
if (!file_exists($file)) {
throw new Exception('Template cant be found.');
}
if ($variables !== null)
extract($variables); //Extract array values to variables; array('foo' => 'bar') will result to $foo = 'bar'; and will be avaiable in the template you are including below but will not leak outside a function call.
ob_start(); //Supress output
include $file; //File
$content = ob_get_contents(); //Retrieve supressed output.
ob_end_clean(); //End output supression.
return $content;
}
将您的代码更改为：
function projectGallery(){
include 'includes/config.php';
$result = mysqli_query($con,"SELECT * FROM project");
while($row = mysqli_fetch_array($result)) {
echo render_with_values('path/to/gallery_item_template.php', $result)
};
};
在path/to/gallery_item_template.php：
<li>
<a href="#" data-reveal-id="<?php echo $project_id; ?>" data-animation="fade">
<div class="project">
<img class="project_image" src="images/upload/<?php echo $project_afbeelding; ?>" />
<h2 class="title"><?php echo $project_title; ?></h2>
</div>
</a>
</li>
答案 6 :(得分：0)
不一定是最漂亮但尚未提及，最快的方式（性能明智）在PHP中连接一些字符串的方法是加入一个数组。
function projectGallery(){
// You should probably require that, not merely include.
require_once 'includes/config.php';
$result = mysqli_query($con, 'SELECT * FROM project');
$buffer = array();
while($row = mysqli_fetch_array($result)) {
$buffer[] = '<li>';
// You're using double quotes, so you can put variables directly
// in your string, no need to concatenate with a dot. The missing
// quotes in the array index key (project_id) are intentionnal
// and valid PHP.
$buffer[] = "<a href=\"#\" data-reveal-id=\"$row[project_id]\" data-animation=\"fade\">";
$buffer[] = '<div class="project">';
...
$buffer[] = '<li>';
};
echo implode('', $bufffer);
}
您还应该记住单引号和双引号之间的区别。单引号处理得更快，因为它们不能包含变量。所以，如果你选择使用双引号，你最好在其中加入一些变量，而不是用点运算符连接它们。