Fatal error: Class 'Phar' not found in /home/polidata/usr/src/playsms-1.4/composer.phar on line 23

playSMS Install and Upgrade
1

Please, could somebody help me, I couldn’t install Playsms, fatal error …
Fatal error: Class ‘Phar’ not found in /home/polidata/usr/src/playsms-1.4/composer.phar on line 23

The file composer.phar is there, in that address, line 23:
Phar::mapPhar(‘composer.phar’);

Line 24:
require ‘phar://composer.phar/bin/composer’;

Thanks, James Scholam