如何检查是否已分配Smarty变量?

Glo*_*ish 8 php template-engine smarty

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');
}
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And*_*ndy 15

Smarty 2

if ($smarty->get_template_vars('foo') === null) 
{
   $smarty->assign('foo', 'some value');
}
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Smarty 3

if ($smarty->getTemplateVars('foo') === null) 
{
   $smarty->assign('foo', 'some value');
}
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请注意,对于Smarty 3,您将不得不使用$smarty->getTemplateVars.