If you’re using Hikashop and get issue with “Add to Cart” checkout page on PHP 7.3.x, Hikashop 4.x, and error details with: “Cannot pass parameter 3 by reference”, it means you’re using old checkout legacy mode on Hikashop 4.x version.
From Hikashop 4.x, it moved to new checkout method, simple and work well with PHP 7.3, so how to solve it? It’s very simple, just go to Hikashop settings and turn off option called “Checkout legacy”.
How to navigate it?
Login to Joomla Admin panel
Go to Component > Hikashop
On Hikashop, go to menu “System > Configuration”
Open tab “Advanced”, find option “Checkout legacy” and turn it OFF
You can see screenshot for Checkout legacy from Hikashop configuration
Save and recheck. If you still see issue, try to clear Site Cache and Browser Cache and recheck.
We also have Hikashop templates which you can take a look for your next project or improve existing website with Hikashop. If you see it’s useful for everyone, feel free share it for your friends who having same issue.
If you still have issue, or have any suggestion for this issue, feel free leave comment, we love to answer.
My name is Kelvin, and I’m the Chief Marketing Officer at LTheme. I have over 10 years of experience in Joomla! and WordPress web development, as well as in digital marketing, where I specialize in SEO. Every day, I write blogs about Joomla! and WordPress, assist others in creating beautiful websites using these CMS platforms, and provide support on the Joomla Support Board as a Joomla Guru in the forum. Thank you for being here!
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