#33586: fix php warning message at search advansed result and index pages

Author: korovitskyi

app/code/Magento/CatalogSearch/Block/Advanced/Form.php

@@ -125,15 +125,12 @@ public function getAttributeValidationClass($attribute)
     public function getAttributeValue($attribute, $part = null)
     {
         $value = $this->getRequest()->getQuery($attribute->getAttributeCode());
+
         if ($part && $value) {
-            if (isset($value[$part])) {
-                $value = $value[$part];
-            } else {
-                $value = '';
-            }
+            $value = $value[$part] ?? '';
         }
 
-        return $value;
+        return is_array($value) ? '' : $value;
     }
 
     /**

app/code/Magento/CatalogSearch/Model/Advanced.php

@@ -197,12 +197,15 @@ public function addFilters($values)
             if (!isset($values[$attribute->getAttributeCode()])) {
                 continue;
             }
-            if ($attribute->getFrontendInput() == 'text' || $attribute->getFrontendInput() == 'textarea') {
-                if (!trim($values[$attribute->getAttributeCode()])) {
-                    continue;
-                }
-            }
+
             $value = $values[$attribute->getAttributeCode()];
+
+            if (($attribute->getFrontendInput() == 'text' || $attribute->getFrontendInput() == 'textarea')
+                && (!is_string($value) || !trim($value))
+            ) {
+                continue;
+            }
+
             $preparedSearchValue = $this->getPreparedSearchCriteria($attribute, $value);
             if (false === $preparedSearchValue) {
                 continue;

dev/tests/integration/testsuite/Magento/CatalogSearch/Controller/Advanced/IndexTest.php

@@ -0,0 +1,115 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\CatalogSearch\Controller\Advanced;
+
+use Magento\TestFramework\TestCase\AbstractController;
+use Laminas\Stdlib\Parameters;
+
+/**
+ * Test cases for catalog advanced index using params.
+ *
+ * @magentoDbIsolation disabled
+ * @magentoAppIsolation enabled
+ */
+class IndexTest extends AbstractController
+{
+    /**
+     * Advanced index test by params with the array in params.
+     *
+     * @magentoAppArea frontend
+     * @dataProvider fromParamsInArrayDataProvider
+     *
+     * @param array $searchParams
+     * @return void
+     */
+    public function testExecuteWithArrayInParams(array $searchParams): void
+    {
+        $this->getRequest()->setQuery(
+            $this->_objectManager->create(
+                Parameters::class,
+                [
+                    'values' => $searchParams
+                ]
+            )
+        );
+        $this->dispatch('catalogsearch/advanced/index');
+        $this->assertEquals(200, $this->getResponse()->getStatusCode());
+        $this->getResponse()->getBody();
+    }
+
+    /**
+     * Data provider with array in param values.
+     *
+     * @return array
+     */
+    public function fromParamsInArrayDataProvider(): array
+    {
+        return [
+            'from_data_with_from_param_is_array' => [
+                [
+                    'name' => '',
+                    'sku' => '',
+                    'description' => '',
+                    'short_description' => '',
+                    'price' => [
+                        'from' => [],
+                        'to' => 1,
+                    ]
+                ]
+            ],
+            'from_data_with_to_param_is_array' => [
+                [
+                    'name' => '',
+                    'sku' => '',
+                    'description' => '',
+                    'short_description' => '',
+                    'price' => [
+                        'from' => 0,
+                        'to' => [],
+                    ]
+                ]
+            ],
+            'from_data_with_params_in_array' => [
+                [
+                    'name' => '',
+                    'sku' => '',
+                    'description' => '',
+                    'short_description' => '',
+                    'price' => [
+                        'from' => ['0' => 1],
+                        'to' => [1],
+                    ]
+                ]
+            ],
+            'from_data_with_params_in_array_in_array' => [
+                [
+                    'name' => '',
+                    'sku' => '',
+                    'description' => '',
+                    'short_description' => '',
+                    'price' => [
+                        'from' => ['0' => ['0' => 1]],
+                        'to' => 1,
+                    ]
+                ]
+            ],
+            'from_data_with_name_param_is_array' => [
+                [
+                    'name' => [],
+                    'sku' => '',
+                    'description' => '',
+                    'short_description' => '',
+                    'price' => [
+                        'from' => 0,
+                        'to' => 20,
+                    ]
+                ]
+            ]
+        ];
+    }
+}

dev/tests/integration/testsuite/Magento/CatalogSearch/Controller/Advanced/ResultTest.php

@@ -219,6 +219,18 @@ public function searchParamsInArrayDataProvider(): array
                         'to' => 1,
                     ]
                 ]
+            ],
+            'search_with_name_param_is_array' => [
+                [
+                    'name' => [],
+                    'sku' => '',
+                    'description' => '',
+                    'short_description' => '',
+                    'price' => [
+                        'from' => 0,
+                        'to' => 20,
+                    ]
+                ]
             ]
         ];
     }