Echo语句在输出中呈现html代码

Question

This is such a basic question that I feel embarrassed asking it. Whenever I echo html tags, instead of rendering the tag, it just displays in the echo output. I have tried single and double quotes, but still no luck. What am I doing wrong here? Thanks

<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 rendered output:

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 code can not be put inside a title tag as browser will not render titles as anything else than a pure text string.