PHP Parse error: syntax error, unexpected '.', expecting '&' or variable (T_VARIABLE) in laravel [duplicate]

This question already has an answer here:

• PHP Parse/Syntax Errors; and How to solve them? 11 answers

I have moved my project from local to Online Server and it shows only blank page. Then i checked the Error Log.

The error below was displayed :

PHP Parse error:  syntax error, unexpected '.', expecting '&' or variable (T_VARIABLE) in /home/humbletree/public_html/invoice/vendor/laravel/framework/src/Illuminate/Foundation/helpers.php on line 477

How can this issue be resolved?

via Karthik