在布尔值上调用成员函数 format() - Laravel

Question

我得到：

"在布尔值上调用成员函数 format() 在 UploadController.php 第 87 行"

这是第 58 到 93 行，其中 87 为粗体：

    set_time_limit(120);
    $now = (new \DateTime)->format('Y-m-d H:i:s');
    $nowYmd = (new \DateTime())->format('Y-m-d');
    foreach ($rows as $row) {
        $deviceLog = [];
        $deviceLog['installation_id'] = $this->parseForNull((int)$row[0]);
        $deviceLog['device_id'] = $devicesSerialToId[$row[1]];
        $deviceLog['2'] = $this->parseForNull($row[2]);
        $deviceLog['3'] = $this->parseForNull($row[3]);
        $deviceLog['4'] = $row[4];
        $deviceLog['5'] = $this->parseForNull($row[5]);
        $deviceLog['6'] = $this->parseForNull($row[6]);
        $deviceLog['7'] = $this->parseForNull($row[7]);
        $deviceLog['8'] = $this->parseBoolean($row[8]);
        $deviceLog['9'] = $this->parseBoolean($row[9]);
        $deviceLog['10'] = $this->parseBoolean($row[10]);
        $deviceLog['11'] = $this->parseForNull(intval($row[11]));
        $deviceLog['12'] = $this->parseForNull($row[12]);
        $deviceLog['13'] = $this->parseForNull($row[13]);
        $deviceLog['14'] = $this->parseForNull($row[14]);
        $deviceLog['15'] = $this->parseForNull($row[15]);
        $deviceLog['16'] = $this->parseForNull($row[16]);
        $deviceLog['17'] = $this->parseForNull($row[17]);
        $deviceLog['18'] = $this->parseBoolean($row[18]);
        $deviceLog['19'] = $this->parseBoolean($row[19]);
        $deviceLog['20'] = $this->parseForNull($row[20]);
        $deviceLog['21'] = $this->parseBoolean($row[21]);
        if (!empty($row[22])) {
            $date = \DateTime::createFromFormat('d-M-y', $row[22]);
            **if($date->format('Y-m-d') != $nowYmd) {**
                continue;
            }
            $deviceLog['last_seen'] = $date->format('Y-m-d');
        } else {
            continue;
        }

我该如何解决这个问题？上传的是一个 csv 文件，日期可以是 null/blanc，也可以是以下格式：23-jan-17。从代码中可以看出，如果 last_seen 日期不是今天，则不​​应将数据放入数据库中。

想法？运行 laravel。

Answer 1

检查 $row[22] 的值。 为空会报错。

if (!empty($row[22])) {
        $date = \DateTime::createFromFormat('d-M-y', $row[22]);
        if(!$date || ($date && ($date->format('Y-m-d') != $nowYmd))) {
            continue;
        }
        $deviceLog['last_seen'] = $date->format('Y-m-d');
    } else {
        continue;
    }