New Installation failure

Silverstripe Version:


Extracted files to server but installer does not open when calling page. Any clues?

Parse error : syntax error, unexpected ‘class’ (T_CLASS), expecting identifier (T_STRING) or variable (T_VARIABLE) or ‘{’ or ‘$’ in /home/content/45/11453245/html/dokakadu/vendor/silverstripe/framework/src/includes/functions.php on line 23


What version of PHP are you installing on? That error suggests an older version. If you can, use a current / latest release such as 7.2