<?php
$name = "张三";
$submit = "提交";
$my_form = <<<form
<form>
用户名：<input type="text" name="name" value="$name"><br>
密 码 ：<input type="password" name="password"><br>
<input type="submit" value="$submit"><br>
</form>
form;
echo $my_form;
?>
