我收到警告:
{"0":"Warning: htmlspecialchars() expects parameter 1 to be string, array given in \/app\/code\/Mageplaza\/LayeredNavigation\/Helper\/Data.php on line 68"
第 68 行看起来像
foreach ($filterParams as $key=>$param){
$filterParams[$key] = htmlspecialchars($param);
}
请帮忙。PHP版本是7.1