#39466 [Bgs]: Expaned Class constants to accept return of function value

ID: 39466 User updated by: kevin at metalaxe dot com Reported By: kevin at metalaxe dot com Status: Bogus Bug Type: Feature/Change Request Operating System: * -PHP Version: 5.2.0 +PHP Version: 5.2.0+ New Comment: I don't understand why I'm being shrugged off as impossible. I'm asking for functionality similar to global constants for class constants. If you can do it for global constants, it seems only plausible that class constants should be handled in a similar fashion. I could find many more uses for the exact same functionality if necessary, within the same applicable class even. Previous Comments: ------------------------------------------------------------------------ [2006-11-10 22:40:38] tony2001@php.net define() is just a function. which declares constants. I was talking about class constants et al. ------------------------------------------------------------------------ [2006-11-10 22:37:11] kevin at metalaxe dot com Just for reference, I reread the docs for global constants set using define(). http://us2.php.net/manual/en/function.define.php states: Defines a named constant at runtime. See the section on constants for more details. ------------------------------------------------------------------------ [2006-11-10 22:33:06] kevin at metalaxe dot com Ok, if that is the case, how does the global constant MAGIC_QUOTES get defined from the code in the description? <?php define( 'MAGIC_QUOTES', ( (bool)get_magic_quotes_gpc() ), true ); var_dump( MAGIC_QUOTES ); ?> prints bool(true) We are running 3 functions there (according to the docs). One to get the value being applied, another to cast to int and finally one to "define" the constant. ------------------------------------------------------------------------ [2006-11-10 22:26:50] tony2001@php.net That's not possible, as constants are declared at compile time, while functions are executed at runtime. ------------------------------------------------------------------------ [2006-11-10 22:11:17] kevin at metalaxe dot com Description: ------------ You can define a global constant based on the return of a function yet you cannot do so for class constants. eg. define( 'MAGIC_QUOTES', ( (bool)get_magic_quotes_gpc() ), true ); Requesting a method to assign class constants in a manner similar to global constants Reproduce code: --------------- <?php class parser { const magic_quotes = (bool)get_magic_quotes_gpc(); public my_stripslashes( $str ) { if( self::magic_quotes === true ) { $str = stripslashes( $str ); } return $str; } } ?> Expected result: ---------------- Constant "magic_quotes" to be assigned the boolean value of get_magic_quotes_gpc's return. Actual result: -------------- With boolean cast: Parse error: syntax error, unexpected T_BOOL_CAST in parser.php on line 4 Without boolean cast: Parse error: syntax error, unexpected '(', expecting ',' or ';' in parser.php on line 4 ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=39466&edit=1