new Совместимость с php8

src/Database/PDOStatement.php

@@ -103,7 +103,7 @@ class PDOStatement extends \PDOStatement implements \IteratorAggregate
         return count($this->cache);
     }
 
-    function execute($args = null) {
+    function execute($args = null): bool {
         $result = parent::execute($args);
         return $result;
     }

src/Database/StatementIterator.php

@@ -16,26 +16,26 @@ class StatementIterator implements \Iterator
         $this->row_count = $rs->getRecordCount();
     }
 
-    function rewind() {
+    function rewind(): void{
         $this->pos = 0;
     }
 
-    function valid() {
+    function valid(): bool {
         return ($this->pos < $this->row_count);
     }
 
-    function key() {
+    function key(): mixed {
         return $this->pos;
     }
 
-    function current() {
+    function current(): mixed{
        if (!isset($this->result->cache[$this->pos])) {
            $this->result->cache[$this->pos] = $this->result->fetch(PDO::FETCH_ASSOC);
        }
        return $this->result->cache[$this->pos];
     }
 
-    function next() {
+    function next(): void{
         $this->pos++;
     }