[PHP]There is no need to pass "cci:" in url parameter for cubrid_connect_with_url

cubrid_connect_with_url tries to connect a database by using connection information passed with an url string argument.
Now the parameter "url" is same with cci_connect_with_url, but there is no need for php user pass "cci:" in the "url" parameter.
Considering the compatibility, the approach now is reserved, and support the way without "cci:", that is, the "url" will become "CUBRID:<host>:<db_name>:<db_user>:......."