Echo语句在输出中呈现html代码

Question

这是一个基本问题，我觉得很尴尬。每当我回显html标签，而不是渲染标签时，它只会显示在echo输出中。我试过单引号和双引号，但仍然没有运气。我在这做错了什么？感谢

<a style="margin-left: 12px;" href="javascript:void(0)" class="tooltip" title="<?php echo "Please select your boxes from the list. You can select a max of 20 boxes per submission.<br />You can select multiple boxes by holding the left ctrl on your keyboard and making your selection"; ?>">Help</a> 

ff渲染输出：

title="Please select your boxes from the list. You can select a max of 20 boxes per submission.<br />You can select multiple boxes by holding the left ctrl on your keyboard and making your selection" 

Answer 1

HTML代码不能放在标题标记内，因为浏览器不会将标题呈现为纯文本字符串以外的任何内容。

Answer 2

使用此代替您的<a/>代码：

<a style="margin-left: 12px;" href="javascript:void(0)" class="tooltip" title="<?php echo 'Please select your boxes from the list. You can select a max of 20 boxes per submission.<br />You can select multiple boxes by holding the left ctrl on your keyboard and making your selection';?>">Help</a> 

或者：

<?php 
$titleText =  'Please select your boxes from the list. You can select a max of 20 boxes per submission.<br />You can select multiple boxes by holding the left ctrl on your keyboard and making your selection';
?>

<a style="margin-left: 12px;" href="javascript:void(0)" class="tooltip" title="<?=$titleText;?>">Help</a>