Fixes for the issues found by Magento Unit Tests for PHP 8.1 compatibility

Author: karyna-t

library/Zend/Db/Adapter/Abstract.php

@@ -928,7 +928,7 @@ public function quote($value, $type = null)
     public function quoteInto($text, $value, $type = null, $count = null)
     {
         if ($count === null) {
-            return str_replace('?', $this->quote($value, $type), $text);
+            return str_replace('?', $this->quote($value, $type) ?? '', $text);
         } else {
             return implode($this->quote($value, $type), explode('?', $text, $count + 1));
         }

library/Zend/Db/Select.php

@@ -817,6 +817,7 @@ protected function _join($type, $name, $cond, $cols, $schema = null)
             $tableName = $name;
             $correlationName = $this->_uniqueCorrelation($tableName);
         }
+        $tableName = $tableName ?? '';
 
         // Schema from table name overrides schema argument
         if (!is_object($tableName) && false !== strpos($tableName, '.')) {

library/Zend/Db/Statement/Pdo.php

@@ -245,7 +245,7 @@ public function _execute(array $params = null)
      * @return mixed Array, object, or scalar depending on fetch mode.
      * @throws Zend_Db_Statement_Exception
      */
-    public function fetch($style = null, $cursor = null, $offset = null)
+    public function fetch($style = null, $cursor = PDO::FETCH_ORI_NEXT, $offset = 0)
     {
         if ($style === null) {
             $style = $this->_fetchMode;

library/Zend/Locale/Data.php

@@ -982,7 +982,7 @@ public static function getContent($locale, $path, $value = false)
         if (is_array($value)) {
             $val = implode('_' , $value);
         }
-        $val = urlencode($val);
+        $val = urlencode((string) $val);
         $id  = self::_filterCacheId('Zend_LocaleC_' . $locale . '_' . $path . '_' . $val);
         if (!self::$_cacheDisabled && ($result = self::$_cache->load($id))) {
             return unserialize($result);

library/Zend/Oauth/Http/Utility.php

@@ -210,7 +210,7 @@ public function generateTimestamp()
      */
     public static function urlEncode($value)
     {
-        $encoded = rawurlencode($value);
+        $encoded = rawurlencode((string) $value);
         $encoded = str_replace('%7E', '~', $encoded);
         return $encoded;
     }