When i add a file named 'page--front123.tpl.php', there is a hook named 'page--front123', why?

戴华 <[email protected]> Mon, 17 Feb 2014 17:14:13 +0800
Newsgroups gmane.comp.php.drupal.devel
Message-ID <CANGeRUaDvSxB2wR+2e6uqCihtYSsF8DhMmBmR30VX2jJuX=-ZQ@mail.gmail.com>
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When i add a file named 'page--front123.tpl.php', there is a hook named
'page--front123', why?

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<div dir="ltr">When i add a file named &#39;page--front123.tpl.php&#39;, there is a hook named &#39;page--front123&#39;, why?</div>

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