note 126727 added to language.constants.syntax

the documentation doesn't go too far in explaining the crucial difference between the two ways of declaring constants in PHP. Const is handled at compile time, define() at run time. For this reason, a constant cannot be conditionally defined using Const, for example. Another difference we can notice occurs in the constant declarations in classes. Const infiltrates the class scope, while define() leaks into the global scope. <?php Class Myclass (){ const NAME = "Nicolas"; } ?> The NAME constant is within the scope of the MyClass class. ---- Server IP: 45.112.84.4 Probable Submitter: 80.90.5.135 (proxied: 168.90.219.236) ---- Manual Page -- https://php.net/manual/en/language.constants.syntax.php Edit -- https://main.php.net/note/edit/126727 Del: integrated -- https://main.php.net/note/delete/126727/integrated Del: useless -- https://main.php.net/note/delete/126727/useless Del: bad code -- https://main.php.net/note/delete/126727/bad+code Del: spam -- https://main.php.net/note/delete/126727/spam Del: non-english -- https://main.php.net/note/delete/126727/non-english Del: in docs -- https://main.php.net/note/delete/126727/in+docs Del: other reasons-- https://main.php.net/note/delete/126727 Reject -- https://main.php.net/note/reject/126727 Search -- https://main.php.net/manage/user-notes.php