如果你正在用smart(不是smarty)，会发现,它不支持.的结构,我稍微改了一下,可以支持了,见笑!
if (preg_match_all('//', $page, $var))
{
foreach ($var[2] as $cnt => $tag)
{
list($parent, $block) = $this->var_name($tag);
$cmp = $var[3][$cnt];
list($parent2, $block2) = $this->var_name($var[4][$cnt]);
$else = ($var[1][$cnt] == 'ELSE') ? '} else' : '';
//if ($cmp == '||')
//{
//$cmp = '==';
//}
$code = "<?php\n$else"."if (\$$parent"."['$block'] $cmp \$$parent2"."['$block2']){\n?>";
$page = str_replace($var[0][$cnt], $code, $page);
}
}