Why does text begin with #_ in HTML coding?

This question is probably for the PHP coders out there. I was looking at the code of the website I'm using and I came across something like this

<a href="{$config.root_url}/page.php">#_TEXTHERE#</a>

What is with the #_ text? How come it doesn't appe开发者_C百科ar in the HTML webpage when loading? I don't see it declared anywhere?!?!

Thank you!

EDIT: 40 minutes later, after finished a bowl of ramen, I figured it out. If anyone wants to knows why the weird code, I have a weird explanation in my next post.

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The site is probably using a template engine or other system to replace that text. Probably for localization.

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This is obviously a template HTML file you are looking at. When the PHP script is called, #_TEXTHERE# will be replaced by whatever is appropriate at the time. Some example code would be,

$replacements['#_TEXTHERE#'] = "Click this link to go here";
return $this->renderTemplate($replacements);

$replacements is an associative array that contains all the replacements for the HTML template.

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Hey everyone, thank you for your QUICK replies. I think this is a very good community =).

And I understand the what it means now thanks to your explanations.

Yes, you all guessed it right. This code is NOT found anywhere. It was originally something like

<a href="{$config.root_url}/home.php">#_TP_Home_#</a>

I edited it thinking you all would reply with like "oh texthere is usually replaced with... under (whatever) situation." But that's not the case here. I learned to put more context next time. I'm a newbie php coder, sorry for the trouble.