html 在php中echo html 时引号的使用

<?php 
	foreach ($unpinpointed as $user) {
	    echo "<div class="list-group-item">
		<div class="pull-right">	
	                <button style="margin-right: 15px" type="button" class="btn btn-info" aria-label="Envelope" data-userid=$user[id] data-email=$user[email] ></button>
			<a href="tel:".$user["phonenumber"]."">
			<button type="button" class="btn btn-info" aria-label="Earphone">
				<span class="glyphicon glyphicon-earphone" aria-hidden="true"></span>
				<span hidden>$user[phonenumber]</span>
			</button>
			</a>
		</div>";
	}
?>

引号要注意！！！

调用HTML的电话功能 <a href="tel:".$user["phonenumber"].""> 方括号内必须用引号

其他的方括号内一定不能用引号