Fix login redirect and hide PHP errors on pages

app/dbconn.php

@@ -27,6 +27,11 @@ class db_statement extends PDOStatement {
 		$this->pdo = $pdo;
 	}
 
+	// PDOStatement::execute() is declared ?array $params = null : bool. This
+	// override deliberately accepts a looser signature so callers may pass
+	// positional arguments (see func_get_args() below), so the tightened return
+	// type is opted out of rather than the call sites being changed.
+	#[\ReturnTypeWillChange]
 	public function execute($args = null) {
 		// Perform logging here. PDO object is accessible
 		// from $this->pdo.