PHP Error in frontend with improper request params

[ioweb-gr]

Preconditions (*)

1. Openmage 20.5.0

Steps to reproduce (*)

1. Visit url https://demo.openmage.org/men/shirts.html?occasion=30,31 and check the php error

Expected result (*)

1. The page opens and the filter is not applied but do not show error to the user.

Actual result (*)

1. PHP Error

 Uncaught TypeError: strlen(): Argument #1 ($string) must be of type string, array given in /var/www/vhosts/example.gr/httpdocs/app/code/core/Mage/Catalog/Model/Layer/Filter/Attribute.php:81\nStack trace:\n#0 /var/www/vhosts/example.gr/httpdocs/app/code/core/Mage/Catalog/Block/Layer/Filter/Abstract.php(81): Mage_Catalog_Model_Layer_Filter_Attribute->apply()\n#1 /var/www/vhosts/example.gr/httpdocs/app/code/core/Mage/Catalog/Block/Layer/Filter/Abstract.php(63): Mage_Catalog_Block_Layer_Filter_Abstract->_initFilter()\n#2 /var/www/vhosts/example.gr/httpdocs/app/code/core/Mage/Catalog/Block/Layer/View.php(125): Mage_Catalog_Block_Layer_Filter_Abstract->init()\n#3 /var/www/vhosts/example.gr/httpdocs/app/code/core/Mage/Core/Block/Abstract.php(299): Mage_Catalog_Block_Layer_View->_prepareLayout()\n#4 /var/www/vhosts/example.gr/httpdocs/app/code/core/Mage/Core/Model/Layout.php(474): Mage_Core_Block_Abstract->setLayout()\n#5 /var/www/vhosts/example.gr/httpdocs/app/code/core/Mage/Core/M.

[fballiano]

I've created #3926 to fix this, please review the PR when you can

[ioweb-gr]

Thanks I'll be able to test it tomorrow

[sreichel]

@all-contributors add @ioweb-gr bug

[allcontributors]

@sreichel

I've put up a pull request to add @ioweb-gr! 🎉