I built a PHP application (no MySQL). What are the things I should keep in mind when figuring out the minimum PHP version it will require? One think I will do is to check all PHP functions I used in the tool and see what PHP version they require. Any other things I should check?
For example, when I check ucwords() function, this page http://tr1.php.net/manual/en/function.ucwords.php shows (PHP 4, PHP 5) but what PHP 4.x it doesn't say.
Thanks for any ideas.