Description:
------------
PHP 7.3.17-1+0~20200419.57+debian9~1.gbp0fda17 
Linux debian 4.9.0-12-amd64 #1 SMP Debian 4.9.210-1 (2020-01-20) x86_64 GNU/Linux -> On VirtualBox (Host Win7) using Shared Directories.


I am not 100% sure why this error happens:
I use the following code to dump an array to a file (its something like a cache system):

file_put_contents($_SERVER['BASE_DIR'].'website/siteconfig/'.$row['domain'].'.php', '<?php'.PHP_EOL.'$CONFIG = ' . $save . ';', LOCK_EX);

the result looks like:

-----------
<?php
$CONFIG = array (
  'id' => '1',
  'created' => '2020-05-25 00:00:41',
  'lastupdate' => '2020-05-25 17:46:16',
  'tmpl_id' => '1',
  'showperpage' => '18',
  'phrases' => '0',
  'hashtags' => '1',
  'maxpages' => 2,
);
-----------

and the error on including using require():

Parse error: syntax error, unexpected ')', expecting end of file in /srv/myproject/website/siteconfig/testsite.local.php on line 11

Line 11 is: );

=================
This error does not appear every time when i update the testsite.local.php using var_dump. Sometimes it happens, sometimes not.

If this error happens i have to delete the file manually and then execute my var_dump again. Then it is working again. If i update without to delete the old file, the same error stay.

Maybe its some problem with the OPcache?