show_tabular.php

-- HikaShop version -- : 4.1.0
-- Joomla version -- : 3.9.5
-- PHP version -- : 7

Hi,
I want to add code to the product page written in php, which will extract information from the database by product code and display it on the screen. Which file do I need to make changes so that when Hikashop updating my changes are not deleted and at the same time Hikashop doesn’t break? Can I do this directly in show_tabular.php?

Hi

I checked php error log today and found a lot of warnigns like this

WARNING: [pool www] child (NNNNN) said into stderr: "NOTICE: PHP message: PHP Notice: Undefined index: cid in /.../html/com_hikashop/product/show_tabular.php on line 315"

the 315 line is

var data = "product_id=<?php echo $_REQUEST['cid']; ?>&characteristic_id="+this.value;

<script type="text/javascript">
jQuery(document).ready(function(){
if(jQuery('.hikashop_product_characteristics_table select').length == 2){
jQuery('.hikashop_product_characteristics_table select:first').on('change',function(){
var data = "product_id=<?php echo $_REQUEST['cid']; ?>&characteristic_id="+this.value;
jQuery.ajax({
type: "POST",
url: "index.php?option=com_ajax&plugin=wwmhikavariantfix&format=raw",
data: data,
success: function(data){
if(data !== 0){
jQuery('.hikashop_product_characteristics_table select:last').html(data);
jQuery('.hikashop_product_characteristics_table select:last').trigger('change');
}
}
});
});
}
})
</script>

Excuse me please Nicolas.
It is indeed not a Hikashop script.
Thanks a lot.