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>Functions</H1
><P
> Every Smarty tag either prints a
<A
HREF="language.variables.html"
>variable</A
> or invokes some sort
of function. These are processed and displayed by enclosing the
function and its
<A
HREF="language.syntax.attributes.html"
>attributes</A
>
within delimiters like so:
<TT
CLASS="literal"
>{funcname attr1='val1' attr2='val2'}</TT
>.
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>Example 3-3. function syntax </B
></P
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><PRE
CLASS="programlisting"
>{config_load file='colors.conf'}
{include file='header.tpl'}
{insert file='banner_ads.tpl' title='Smarty is cool'}
{if $logged_in}
Welcome, <font color="{#fontColor#}">{$name}!</font>
{else}
hi, {$name}
{/if}
{include file='footer.tpl' ad=$random_id}</PRE
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><P
> Both <A
HREF="language.builtin.functions.html"
>built-in functions</A
>
and <A
HREF="language.custom.functions.html"
>custom functions</A
>
have the same syntax within templates.
</P
></LI
><LI
><P
>Built-in functions are the
<SPAN
CLASS="bold"
><B
CLASS="emphasis"
>inner</B
></SPAN
> workings of Smarty, such as
<A
HREF="language.function.if.html"
><TT
CLASS="varname"
>{if}</TT
></A
>,
<A
HREF="language.function.section.html"
><TT
CLASS="varname"
>{section}</TT
></A
> and
<A
HREF="language.function.strip.html"
><TT
CLASS="varname"
>{strip}</TT
></A
>.
There should be no need to change or modify them.
</P
></LI
><LI
><P
>Custom functions are
<SPAN
CLASS="bold"
><B
CLASS="emphasis"
>additional</B
></SPAN
>
functions implemented via <A
HREF="plugins.html"
>plugins</A
>.
They can be modified to your liking, or you can create new ones.
<A
HREF="language.function.html.options.html"
> <TT
CLASS="varname"
>{html_options}</TT
></A
> and
<A
HREF="language.function.popup.html"
><TT
CLASS="varname"
>{popup}</TT
></A
>
are examples of custom functions.
</P
></LI
></UL
><P
> See also <A
HREF="api.register.function.html"
><TT
CLASS="varname"
>register_function()</TT
></A
>
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