Parse error: syntax error, unexpected '(', expecting ',' or ';' in
You can't initialize member variables to anything that is not static, and you're trying to call a function.
From the manual:
This declaration may include an initialization, but this initialization must be a constant value--that is, it must be able to be evaluated at compile time and must not depend on run-time information in order to be evaluated.
The workaround is to set your variable in the constructor:
private $random_name;public function __construct() { $this->random_name = rand(1000,9999).rand(1000,9999).rand(1000,9999).rand(1000,9999);}
You can't do this:
private $image_dimensions = getimagesize($temp_dir);Functions, variables, and anything else not static can't be called to set class variables.