smarty/docs/en/programmers/api-variables/variable-config-overwrite.xml

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  <sect1 id="variable.config.overwrite">
  <title>$config_overwrite</title>
  <para>
    If set to &true;, the default then variables read in from
    <link linkend="config.files">config files</link> will overwrite each
    other. Otherwise, the variables will be pushed onto an array. This is
    helpful if you want to store arrays of data in config files, just list
  each element multiple times.
  </para>

  <example>
    <title>Array of config #variables#</title>
    <para>
      This examples uses
      <link linkend="language.function.cycle"><varname>{cycle}</varname></link>
      to output a table with alternating red/green/blue row colors
      with <parameter>$config_overwrite</parameter> = &false;.
    </para>
    <para>The config file.</para>
    <programlisting>
<![CDATA[
# row colors
rowColors = #FF0000
rowColors = #00FF00
rowColors = #0000FF
]]>
    </programlisting>
    <para>
      The template with a <link linkend="language.function.section">
      <varname>{section}</varname></link> loop.
      </para>
    <programlisting>
<![CDATA[
<table>
  {section name=r loop=$rows}
  <tr bgcolor="{cycle values=#rowColors#}">
    <td> ....etc.... </td>
  </tr>
  {/section}
</table>
]]>
    </programlisting>
  </example>
    <para>
    See also
    <link linkend="language.function.config.load"><varname>{config_load}</varname></link>,
    <link linkend="api.get.config.vars"><varname>get_config_vars()</varname></link>,
    <link linkend="api.clear.config"><varname>clear_config()</varname></link>,
    <link linkend="api.config.load"><varname>config_load()</varname></link>
    and the <link linkend="config.files">config files section</link>.
  </para>

</sect1>
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