Help! Syntax error in wp-config.php

pls help. i get this error when i try to open a wordpress site I am trying to build on my local pc. it is locally installed on my c: drive. what do I do?

Parse error: syntax error, unexpected ‘define’ (T_STRING) in C:\xampp\htdocs\lifeisrich.com\wp-config.php on line 45

just below is line 45 to 52 on my wp-config.php file.

*/
45 define(‘AUTH_KEY’, ‘put your unique phrase here’);
46 define(‘SECURE_AUTH_KEY’, ‘put your unique phrase here’);
47 define(‘LOGGED_IN_KEY’, ‘put your unique phrase here’);
48 define(‘NONCE_KEY’, ‘put your unique phrase here’);
49 define(‘AUTH_SALT’, ‘put your unique phrase here’);
50 define(‘SECURE_AUTH_SALT’, ‘put your unique phrase here’);
51 define(‘LOGGED_IN_SALT’, ‘put your unique phrase here’);
52 define(‘NONCE_SALT’, ‘put your unique phrase here’);