【ThinkPHP】like同一个字段多个条件查询

#代码呈现
$a = '2017,欧美，动作';
# 如果参数是这样的一点问题没有
$where['category'] = ['like','%'.$a.'%'];
$a = '2017，动作';
# 如果参数是这样的那就直接凉  因为like是全量匹配不会分开匹配
$where['category'] = ['like','%'.$a.'%'];

$a = '2017,欧美,动作';
$category = implode(',',$a);
foreach($category as $k => $v) {
  $where['category'] = [
    ['like','%'.$v.'%']
  ];
}

$a = '2017,欧美,动作';
$category = implode(',',$a);
$where = [];
if(count($category) === 1){
  $where['category'] = ['like','%'.$category.'%'];
}else{
  foreach($category as $k => $v) {
    $where['category'] = [
      ['like','%'.$v.'%']
    ];
  }
}