如何检查是否已分配Smarty变量？

如何检查特定值是否已分配给Smarty,如果没有分配(默认)值？

回答:

if ($this->cismarty->get_template_vars('test') === null) {
   $this->cismarty->assign('test', 'Default value');
}

Andy.. 15

Smarty 2

if ($smarty->get_template_vars('foo') === null) 
{
   $smarty->assign('foo', 'some value');
}

Smarty 3

if ($smarty->getTemplateVars('foo') === null) 
{
   $smarty->assign('foo', 'some value');
}

请注意,对于Smarty 3,您将不得不使用$smarty->getTemplateVars.

Smarty 2

if ($smarty->get_template_vars('foo') === null) 
{
   $smarty->assign('foo', 'some value');
}

Smarty 3

if ($smarty->getTemplateVars('foo') === null) 
{
   $smarty->assign('foo', 'some value');
}

请注意,对于Smarty 3,您将不得不使用$smarty->getTemplateVars.