Laravel-datatables: syntax error, unexpected '?'

[Osaidx]

(1/1) FatalErrorExceptionsyntax error, unexpected '?'

in DataTableAbstract.php (line 624)

[yajra]

I think this is php error. Make sure you are using at least PHP 7.

[alfenfebral]

Check in DataTableAbscract.php in line 624
Change this line
$this->serializer ?? null
to
isset($this->serializer) ? $this->serializer : null

Work in PHP 5.6

[amarjitbh]

thanks for helping @alfenfebral

[raikodok]

Check in DataTableAbscract.php in line 624
Change this line
$this->serializer ?? null
to
isset($this->serializer) ? $this->serializer : null

Work in PHP 5.6

thank you,