appending to footer

[Dr.CustUmz]

im trying to make my product vb4 compatible.

this is the vb3 way of appending to the footer:
$vbulletin->templatecache['footer'] .= "<script src='//platform.vine.co/static/scripts/embed.js'></script>";

whats the way to do this in vb4? because as is seems to be breaking the footer. =/

[MarkFL]

You should be able to just use:

$footer .= 'string';