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<div class="sect1" title="Variables">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="language.syntax.variables"></a>Variables</h2></div></div></div>
<p>
Template variables start with the $dollar sign. They can contain numbers,
letters and underscores, much like a
<a class="ulink" href="http://php.net/language.variables" target="_top">PHP variable</a>.
You can reference arrays
by index numerically or non-numerically. Also reference
object properties and methods.</p>
<p>
<a class="link" href="language.config.variables.html" title="Variables loaded from config files">Config file variables</a>
are an exception to the $dollar syntax
and are instead referenced with surrounding #hashmarks#, or
via the
<a class="link" href="language.variables.smarty.html#language.variables.smarty.config" title="{$smarty.config}">
<em class="parameter"><code>$smarty.config</code></em></a> variable.
</p>
<div class="example">
<a name="id3026799"></a><p class="title"><b>Example 3.2. Variables</b></p>
<div class="example-contents"><pre class="programlisting">
{$foo} <-- displaying a simple variable (non array/object)
{$foo[4]} <-- display the 5th element of a zero-indexed array
{$foo.bar} <-- display the "bar" key value of an array, similar to PHP $foo['bar']
{$foo.$bar} <-- display variable key value of an array, similar to PHP $foo[$bar]
{$foo->bar} <-- display the object property "bar"
{$foo->bar()} <-- display the return value of object method "bar"
{#foo#} <-- display the config file variable "foo"
{$smarty.config.foo} <-- synonym for {#foo#}
{$foo[bar]} <-- syntax only valid in a section loop, see {section}
{assign var=foo value='baa'}{$foo} <-- displays "baa", see {assign}
Many other combinations are allowed
{$foo.bar.baz}
{$foo.$bar.$baz}
{$foo[4].baz}
{$foo[4].$baz}
{$foo.bar.baz[4]}
{$foo->bar($baz,2,$bar)} <-- passing parameters
{"foo"} <-- static values are allowed
{* display the server variable "SERVER_NAME" ($_SERVER['SERVER_NAME'])*}
{$smarty.server.SERVER_NAME}
</pre></div>
</div>
<br class="example-break"><p>Request variables such as <code class="literal">$_GET</code>,
<code class="literal">$_SESSION</code>, etc are available via the
reserved <a class="link" href="language.variables.smarty.html" title="{$smarty} reserved variable">
<em class="parameter"><code>$smarty</code></em></a> variable.
</p>
<p>
See also <a class="link" href="language.variables.smarty.html" title="{$smarty} reserved variable">
<em class="parameter"><code>$smarty</code></em></a>,
<a class="link" href="language.config.variables.html" title="Variables loaded from config files">config variables</a>
<a class="link" href="language.custom.functions.html#language.function.assign" title="{assign}"><code class="varname">{assign}</code></a>
and
<a class="link" href="api.assign.html" title="assign()"><code class="varname">assign()</code></a>.
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