如何在会话语句中添加 html 代码

Question

如果用户登录我想显示这个，当我尝试使用 echo 编码时，我失败了，我该怎么做？

<?php
if(isset($_SESSION['userID'])){
echo 'BELOW CODE HERE';
}
?>

我尝试在回显"中添加代码。但是没有工作我该怎么做？

 <div class="col">
<div class="card" >
  <img class="card-img-top" src="..." alt="Card image cap">
  <div class="card-body">
    <h5 class="card-title">Card title</h5>
    <p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
  </div>
  <ul class="list-group list-group-flush">
    <li class="list-group-item">Cras justo odio</li>
    <li class="list-group-item">Dapibus ac facilisis in</li>
    <li class="list-group-item">Vestibulum at eros</li>
  </ul>
  <div class="card-body">
    <a href="#" class="card-link">Card link</a>
    <a href="#" class="card-link">Another link</a>
  </div>
</div> 

Answer 1

您收到错误，因为您将 HTML 包装在单引号中，并在 HTML 中使用了单引号(...卡的大部分内容...

使用以下HEREDOC尝试以下操作：

if($_SESSION['userID']){
    echo <<<EOF
 <div class="col">
<div class="card" >
  <img class="card-img-top" src="..." alt="Card image cap">
  <div class="card-body">
    <h5 class="card-title">Card title</h5>
    <p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
  </div>
  <ul class="list-group list-group-flush">
    <li class="list-group-item">Cras justo odio</li>
    <li class="list-group-item">Dapibus ac facilisis in</li>
    <li class="list-group-item">Vestibulum at eros</li>
  </ul>
  <div class="card-body">
    <a href="#" class="card-link">Card link</a>
    <a href="#" class="card-link">Another link</a>
  </div>
</div> 
EOF;
}

这是存储HTML或任何可能包含单引号或双引号的文本的更好方法。

Answer 2

试试这个您必须转义此行中存在的单引号 一些快速示例文本以构建卡片标题并构成card's内容的大部分。

if(isset($_SESSION['userID'])){
echo '<div class="col">
<div class="card" >
  <img class="card-img-top" src="..." alt="Card image cap">
  <div class="card-body">
    <h5 class="card-title">Card title</h5>
    <p class="card-text">Some quick example text to build on the card title and make up the bulk of the `card's` content.</p>
  </div>
  <ul class="list-group list-group-flush">
    <li class="list-group-item">Cras justo odio</li>
    <li class="list-group-item">Dapibus ac facilisis in</li>
    <li class="list-group-item">Vestibulum at eros</li>
  </ul>
  <div class="card-body">
    <a href="#" class="card-link">Card link</a>
    <a href="#" class="card-link">Another link</a>
  </div>
</div> ';
}