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Filtros de saída

Filtros de saída operam na saída do template, depois que o template é lido e executado, mas antes a saída é mostrada.

string smarty_outputfilter_name( $template_output,  
string $template_output;
object &$smarty;

O primeiro parâmetro para a função do filtro de saída é a saída do template que precisa ser processada, e o segundo parâmetro é a instância da Smarty invocando o plugin. O plugin deve fazer o precessamento e retornar os resultados.

Example 16.9. output filter plugin

 * Smarty plugin
 * -------------------------------------------------------------
 * File:     outputfilter.protect_email.php
 * Type:     outputfilter
 * Name:     protect_email
 * Purpose:  Converts @ sign in email addresses to %40 as 
 *           a simple protection against spambots
 * -------------------------------------------------------------
 function smarty_outputfilter_protect_email($output, &$smarty)
     return preg_replace('!(\S+)@([a-zA-Z0-9\.\-]+\.([a-zA-Z]{2,3}|[0-9]{1,3}))!',
                         '$1%40$2', $output);

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