PHP Parse error: syntax error, unexpected '?' in app/Template/tag/index.php

1

I get a PHP Parse error: syntax error, unexpected ‘?’ in app/Template/tag/index.php on the line

<?= $this->text->e($colors[$tag['color_id']] ?? '') ?> after upgrading to

Application version: 1.2.13
PHP version: 5.6.30-0+deb8u1
PHP SAPI: apache2handler
OS version: Linux 4.15.17-3-pve
Database driver: mysql
Database version: 5.5.55-0+deb8u1

removing the ?? ‘’ at least renders the page, but still generates PHP Notice: Undefined index:

Is it time for a PHP upgrade?

2

Yes, PHP Version 5.6 isn’t supported anymore https://www.php.net/supported-versions.php