php - Initialize class in the same file -


this might seem stupid question but, practice initialize class or call 1 of it's functions in same file? mean this:

<?php class myclass {     public function __construct($param) {      }     public static function myfunction() {      } }  $obj = new myclass('hello'); myclass::myfunction(); ?>

this works jut fine, i'm curios if practice, functionality , accessibility point of view.

no, it's not practice. the psr has codified in third point:

files should either declare symbols (classes, functions, constants, etc.) or cause side-effects (e.g. generate output, change .ini settings, etc.) should not both.

creating variables, class instances , calling code "side effect". cause problems if include file several times different places, or implicitly creating variable in current scope without way avoid that.


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