note 102511 added to function.defined

If you wish to protect files from being called directly, I've found in tests that calling an empty function is quicker than calling defined() on a constant (as certain frameworks and PHP applications do). Therefore you can declare a uniquely-named empty function in your main script then call it from your sub-scripts in place of defining and checking for a constant. For example: Main script: <?php function my_unique_function() {} require('subscript.php'); ?> Sub script: <?php my_unique_function(); ?> This will throw a fatal error if the sub script hasn't been called via the main script where my_unique_function() is declared as the function does not exist and cannot be called. In tests on the same hardware I've found calling an existing empty function about 3 times quicker than checking if a constant is defined. See http://matthewjamesward.co.uk/php/function_defined.php for details. ---- Server IP: 87.124.126.117 Probable Submitter: 87.124.34.68 (proxied: 87.124.34.68) ---- Manual Page -- http://www.php.net/manual/en/function.defined.php Edit -- https://master.php.net/note/edit/102511 Del: integrated -- https://master.php.net/note/delete/102511/integrated Del: useless -- https://master.php.net/note/delete/102511/useless Del: bad code -- https://master.php.net/note/delete/102511/bad+code Del: spam -- https://master.php.net/note/delete/102511/spam Del: non-english -- https://master.php.net/note/delete/102511/non-english Del: in docs -- https://master.php.net/note/delete/102511/in+docs Del: other reasons-- https://master.php.net/note/delete/102511 Reject -- https://master.php.net/note/reject/102511 Search -- https://master.php.net/manage/user-notes.php