<?php
session_start();
include ("bd.php");
$login = $_SESSION['login'];
$namePlaylists=$db->query("SELECT name_playlist FROM playlist WHERE login_user='$login'");
$rows = mysqli_num_rows($namePlaylists);
for($t=0;$t<$rows;$t++)
$row[$t] = mysqli_fetch_row($namePlaylists);
$rezult="";
for ($i=0; $i < $rows; $i++) {
$rezult+="\
<li>
<img src='<?php bloginfo('template_url'); ?>/img/music.svg' alt=''>
<a href=''>"+$row[$i]+"</a> /// 17-строка
</li>";
}
echo $rezult;
?>
Пишет Uncaught Error: Unsupported operand types и A non-numeric value encountered