使用php替换正则表达式与正则表达式

我想使用相同的哈希标签替换字符串中的哈希标签,但在添加链接之后

例：

$text = "any word here related to #English must #be replaced."

我想替换每个主题标签

#English ---> <a href="bla bla">#English</a>
#be ---> <a href="bla bla">#be</a>

所以outpu应该是这样的：

$text = "any word here related to <a href="bla bla">#English</a> must <a href="bla bla">#be</a> replaced."

谢谢

$input_lines="any word here related to #English must #be replaced.";
preg_replace("/(#\w+)/","<a href='bla bla'>$1</a>",$input_lines);

DEMO

OUTPUT：

any word here related to <a href='bla bla'>#English</a> must <a href='bla bla'>#be</a> replaced.