Sophie: php-smarty-doc-2.6.26-1mdv2010.0 noarch

php-smarty-doc-2.6.26-1mdv2010.0.noarch.rpm

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>Chapter 18. Tips &#38; Tricks</H1
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><DL
><DT
><B
>Table of Contents</B
></DT
><DT
><A
HREF="tips.html#tips.blank.var.handling"
>Blank Variable Handling</A
></DT
><DT
><A
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>Default Variable Handling</A
></DT
><DT
><A
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>Passing variable title to header template</A
></DT
><DT
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>Dates</A
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>WAP/WML</A
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>Obfuscating E-mail Addresses</A
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><P
>&#13;  </P
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CLASS="sect1"
><H1
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><A
NAME="tips.blank.var.handling"
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>Blank Variable Handling</H1
><P
>&#13;    There may be times when you want to print a default value for an empty
    variable instead of printing nothing, such as printing
    <TT
CLASS="literal"
>&#38;nbsp;</TT
> so that
    html table backgrounds work properly. Many would use an
    <A
HREF="language.function.if.html"
><TT
CLASS="varname"
>{if}</TT
></A
>
    statement to  handle this, but there is a shorthand way with Smarty, using
    the <A
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><TT
CLASS="varname"
>default</TT
>
    </A
> variable modifier.
    <DIV
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><B
>Note: </B
><SPAN
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>"Undefined variable"</SPAN
> errors will show if PHP
    <A
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TARGET="_top"
>&#13;    <TT
CLASS="varname"
>error_reporting()</TT
></A
> is <TT
CLASS="constant"
>E_ALL</TT
>
     and a variable had not been assigned to Smarty.
    </P
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>
   </P
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><B
>Example 18-1. Printing &#38;nbsp; when a variable is empty</B
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><PRE
CLASS="programlisting"
>{* the long way *}
{if $title eq ''}
   &#38;nbsp;
{else}
   {$title}
{/if}

{* the short way *}
{$title|default:'&#38;nbsp;'}</PRE
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>&#13;See also <A
HREF="language.modifier.default.html"
>&#13;<TT
CLASS="varname"
>default</TT
></A
> modifier and
<A
HREF="tips.default.var.handling.html"
>default variable handling</A
>.
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