p; @is_file($this->cache_filename))
{
if ((time() - filemtime($this->cache_filename)) < $this->cache_lifetime)
{
readfile($this->cache_filename);
exit;
}
}
ob_start( array( &$this, 'cache_callback' ) );
}
}
/**
* Output Buffer Callback Function
*
* @access private
* @param string $output
* @return string $output
*/
function cache_callback ( $output )
{
if ($hd = @fopen($this->cache_filename, 'w'))
{
fputs($hd, $output);
fclose($hd)
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