Smarty : substr a variable

问题

How can I print the first n characters of a smarty variable, e.g. the first 30 characters of {$var}?

回答1:

You should use truncate modifier:

{$var|truncate:30}

More information here.

回答2:

Now there is a function:

{$var|substr:0:30}

or mb_substr for UTF-8 variables:

{$var|mb_substr:0:30}

回答3:

Regarding to your problem Jojo already gave the correct answer.

You should use truncate modifier:

{$var|truncate:30}

But for usability and seo-reaons it would be better to shorten the text via css with text-overflow property. It allows you to print the whole text out to the client but shorten it to a specific width/length and show ... instead.

来源：https://stackoverflow.com/questions/4325283/smarty-substr-a-variable