Joomla-cms: string truncate error after update to Joomla 3.9

[B3nito]

I have this code in my theme:
$intro = ''; $intro = $item->introtext; JHTML::_('string.truncate'); echo JHtmlString::truncate($intro,110, true, false);

when update to 3.9 I have this error:

In 3.8.12 no have a problem.

[SharkyKZ]

Remove JHTML::_('string.truncate') or change JHtmlString::truncate($intro,110, true, false) to JHtml::_('string.truncate', $intro,110, true, false).

[B3nito]

Thank you, issue solved, but why it working in 3.8.12 ?

[SharkyKZ]

No idea. Doesn't work for me on 3.8.12.

[laoneo]

For me JHTML::_('string.truncate'); does also not work on 3.8.12. Do you have the same error reporting setting in your Joomla config?

[B3nito]

can be not. thank you everyone!