Mediawiki 1.72.0 changePassword.php Parse error : I am trying to use the `changePassword.php` command in MediaWiki 1.27.0 in order to change a user password. Unfortunately I get the following error message:

    <br />
    <b>Parse error</b>:  syntax error, unexpected '[', expecting ')' in
    <b>/wiki/maintenance/changePassword.php</b> on line <b>56</b><br />


Details of the system:

 - MediaWiki 1.27.0
 - PHP 5.6.27 (cgi-cgi)
 - MySQL 5.6.32-78.1-log
 - ICU 4.2.1