unserialize error opencart 2.1.0.1

Question

Im getting this error in the error log on opencart 2.1.0.1

PHP Notice:  unserialize(): Error at offset 0 of 2 bytes in /home/zachovek/public_html/vqmod/vqcache/vq2-catalog_controller_module_d_quickcheckout.php on line 1392

When the customer is placing an order via quickcheckout and at the same time is registering new profile - this error appears BUT NOT ONLY - the products in the order are not showing! This is the following line of the code:

$data['custom_field'] = unserialize($customer_info['custom_field']);

How can i fix it? Thank you!

Answer 1

You can use json_encode instead of serialize function and json_decode instead of unserialize