strrpos() expects parameter 1 to be string, array given in functions_categories.php

[kashyyyk]

I compared files, everything I can tell is fine. It's from an add on, and it's from a page added, since the original install doesn't have a file to compare it to I don't know which file added is causing the problem.

My main page doesn't cause an error, when you are at the items page you don't get the error, now when I go to the catagory page that lists all the items in that catagory, I get the error, I noticed in the section that says "New Products For February - CATAGORY" The word catgory is from the wrong catagory I am in.

Which files create the New product areas and that listing page?

[gjh42]

Do you know what addon mods are installed on your site? You should. If not, what functions related to categories are different in Classic and in your custom template? Do you get the category name error in Classic? That would indicate a mod erroneously installed in /template_default/, or a corrupted file.

[numinix]

I'm finding this same issue sporadically across Zen Cart sites ranging from 1.3.8a to 1.3.9h. The site with 1.3.9h only has Fast and Easy AJAX Checkout installed.

A band-aid solution may be to add something like this before the problematic line in functions_categories.php:

if (is_array($categories_id)) $categories_id = implode('_', $categories_id); 

This assumes that if $categories_id is an array, then it's an array of category ids.

[DrByte]

Possibly.

It would be useful to know what specific "clicks" trigger the error so we can trace back the cause of invalid data being submitted to the function.