note 127240 added to language.enumerations.listing

As ::cases() creates a Iteratable it is possible to use it in a foreach loop. In combination with value backed enum this can result in very compact and very readable code: <?php /** Content Security Policy directives */ enum CspDirective: String { case Default = "default-src"; case Image = "img-src"; case Font = "font-src"; case Script = "script-src"; case Style = "style-src"; } /** list all CSP directives */ foreach( CspSource::cases() as $directive ) { echo $directive-> value . PHP_EOL; } ?> Which results in: default-src img-src font-src script-src style-src ---- Server IP: 45.112.84.4 Probable Submitter: 80.90.12.131 (proxied: 83.97.81.249) ---- Manual Page -- https://php.net/manual/en/language.enumerations.listing.php Edit -- https://main.php.net/note/edit/127240 Del: integrated -- https://main.php.net/note/delete/127240/integrated Del: useless -- https://main.php.net/note/delete/127240/useless Del: bad code -- https://main.php.net/note/delete/127240/bad+code Del: spam -- https://main.php.net/note/delete/127240/spam Del: non-english -- https://main.php.net/note/delete/127240/non-english Del: in docs -- https://main.php.net/note/delete/127240/in+docs Del: other reasons-- https://main.php.net/note/delete/127240 Reject -- https://main.php.net/note/reject/127240 Search -- https://main.php.net/manage/user-notes.php