$_SERVER[“DOCUMENT_ROOT”] === /home/user/www$_SERVER[“SERVER_ADDR”] === 143.34.112.23$_SERVER[‘HTTP_HOST’] === example.com (or with WWW)$_SERVER[“REQUEST_URI”] === /folder1/folder2/yourfile.php?var=blabla#123__FILE__ === /home/user/www/folder1/folder2/yourfile.php —>//p.s. ON WINDOWS SERVERS, instead of / is basename(__FILE__) === yourfile.php__DIR__ === /home/user/www/folder1/folder2 [same: dirname(__FILE__)]$_SERVER[“QUERY_STRING”] === var=blabla#123$_SERVER[“REQUEST_URI”] === /folder1/folder2/yourfile.php?var=blabla#123 parse_url($_SERVER[“REQUEST_URI”], PHP_URL_PATH) === /folder1/folder2/yourfile.php $_SERVER[“PHP_SELF”] === /folder1/folder2/yourfile.php//if “parentfile.php” includes this “yourfile.php”(and inside it are the codes written), and “parentfile.php?a=123” is opened, then$_SERVER[“PHP_SELF”] […]
1. Using MyISAM rather than InnoDB MySQL has a number of database engines, but you’re most likely to encounter MyISAM and InnoDB. MyISAM is used by default. However, unless you’re creating a very simple or experimental database, it’s almost certainly the wrong choice! MyISAM doesn’t support foreign key constraints or transactions, which are essential for […]