note 25871 deleted from language.constants by nlopess

Note Submitter: fmmarzoa@gmx.net ---- Constants can be useful for i18n and l10n (internationalization and localization). I'm using a module for each language my application supports for string isolation. Each module only contains constants definitions. In example, I've this in my module 'en.php' (English): define (strSayHello, 'Hello!'); While in my module 'es.php' (Spanish), I've the constant redefined: define (strSayHello, '¡Hola!'); The language module needed is dinamically choosen by the application based on user preferences. All works ok, but I've had a trouble with constants that must include variable values, in example, I've something like: define (strArticleDescr, 'Published by $article_author on $article_date in $article_lang_name'); Now, when I try to use this, the value is interpreted literally, so: print strArticleDescr; Will show: Published by $article_author on $article_date in $article_lang_name I've found a solution for this using 'eval' for parsing the constant, thats: eval ('print "'.strArticleDescr.'";') And now things works ok, like in example: Published by Francisco M. Marzoa on 2002-10-09 15:39:10 in Spanish Hope you find this useful.