[gradsusr] can't run example on php interface

[javier Perez]

Hi grad users,

I was trying to run the example given in
http://opengrads.org/wiki/index.php?title=PHP_Interface_to_GrADS
but I get the following message

*Strict Standards*: Non-static method Grads::Start() should not be called
statically in *C:\xampp\htdocs\ejemplo.php* on line *10*
Started with pid = 6676

Can anyone explain me what is happening?
Thanks
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