Re: Optimizing performance for mass-includes + Code

thoughts on potential problems:

* variable scope on included templates
* determining when a recompile is necessary

The easiest solution to the php include() performance is to turn on
template caching, then you only load one cache file.

Monte

On Sun, 2004-02-22 at 01:52, Thomas Bley wrote:
> Hi,
> 
> I found out that mass including is very slow using php in general, e.g.
>     {foreach from=$temp_table.fields key=curr_id item=item}
>       {include file="asset_functions.tpl" section="item_fields"}
>     {/foreach}
> 
>     {foreach from=$temp_table.fields key=curr_id item=item}
>       {include file="asset_functions.tpl" section="item_data"}
>     {/foreach}
> 
> this is much slower than including the code directly between the foreach 
> statements.
> 
> 
> My Solution: (based on smarty 2.6.2)
> 
> -- code can be copied without copyright hint
> 
> (increases performance with complexity of n depending on the number of n 
> foreach iterations)
> I create a prefilter :
> The filter takes a look at the template and replaces all includes with 
> the code directly (if the replaced code also has includes it works 
> recursively)
> 
> $smarty->register_prefilter("modify_includes");
> 
> function replace_file($match) {
>   global $smarty;
>   // get the code from the included file
>   if (isset($match[1]) and $match[1]!="") $result = 
> modify_includes($smarty->_read_file($smarty->template_dir."/".$match[1]),$smarty);
> 
>   // map the assigned variables (using include file="" var1="value1") to 
> assign
>   if (isset($match[2]) and $match[2]!="") {
>     while (preg_match("|(.*?)=\"(.*?)\"|i",$match[2],$var)) {
>       $match[2] = str_replace($var[0],"",$match[2]);
>       if (count($var)==3) {
>         $result = "{assign var=\"".trim($var[1])."\" 
> value=\"".$var[2]."\"}\n".$result;
>       }
>     }
>   }
>   return $result;
> }
> 
> function modify_includes($tpl_source, &$smarty) {
>   $tpl_source =  preg_replace_callback("|{include 
> file=\"(.*?)\"(.*?)}|im","replace_file",$tpl_source);
>   return $tpl_source;
> }
> 
> 
> bye
> tom

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