PHP contains file path related issues

PHP contains file path issues

??? Recently just learning PHP, in doing a small project, with a lot of require and include, by the absolute path, the relative path of the burn, finally figured out.

?

??? 1, the relative path of PHP is based on the script to run, for example, A contains b,b contains C, if a, C in the same level of directory, then B contains the path of C should be relative to a, if B, C in the same level of directory, then B contains the path of C is relative to C.

??? 2. Regardless of how the. php script is included, dirname (__file__) Gets the absolute path to the folder where the script is located.

??? These two rules are difficult to use accurately, at least I myself often get dizzy, so I used a more trickery way, I wrote a path.php, so very few mistakes.

???
????? Define (' Root_path ', DirName (__file__));
????? Define (' Action_path ', Root_path. /action/');
????? Define (' Bean_path ', Root_path. /bean/');
????? Define (' Dao_path ', Root_path. /dao/');
????? Define (' Ipadview_path ', Root_path. /ipadview/');
????? Define (' View_path ', Root_path. /view/');

??? ?>

?

?

