Apologies if this isn't the right place to ask about an extension. Trying to enable Math extension, get blank page on startup with this error:
PHP Parse error: syntax error, unexpected '[' in /var/www/html/extensions/Math/Math.hooks.php on line 12
OS is RHEL 6.7, Mediawiki 1.26.4, PHP 5.3.3.
Have tried Math vers. 23, 27 and 30, same symptom.
Hints?