Re: Advice on Constants - Notice: Undefined Constant

On Wed, 9 Apr 2003, Adam Douglas wrote: > I'm currently developing a web site that stores two security levels of the > client logged in. These security levels and including a few other variables > are returning a PHP notice statement, "Notice: Undefined constant...". Now > these variables are set at initial login into the web site and are stored > into a the session file to reduce security checking routines and with the > concept of why do a check again when we already know the value. > > To resolve this PHP notice issue I figured no big deal I will just declare > the variable as a constant using define(). But by doing this correct me if > I'm wrong you now no longer refer to the variable with a dollar sign and the > variable name. Which is fine but can I store the constant into the session > file? > > My concern and question is what the best direction to resolve this? At > present if I just define the variables as a constant I get another PHP > message "Notice: Undefined offset..." throughout my code when referencing my > session variable (_SESSION[name]). > > Any advice would be greatly appreciated. Use $arr['foo'] and not $arr[foo]. Read this: http://www.php.net/types.string With $arr[foo], PHP will first look for a constant named foo and if it doesn't exist it provides the E_NOTICE and then looks for a string named 'foo'. The above manual entry describes this in detail. You may also use error_reporting or prepend @ to suppress the error. Regards, Philip