Php directory separator constant

I was curious about the impact of the directory separator and how that affects cross platform compatibilitye ver since I started developing on my Vista machine. Lately I was doing directory-related tasks and I decided that these functions would come in handy if I had them in PHP so I decided to create my own ports of them. The original path information is added to the Magento registry object with:The first branch of the IF statement is used if Magento is running in compiled mode (an optimization setting where Magento moves all of its classes to a flat directory structure). PHP core. No installation is required to use these functions. Constant or expression that evaluates to a boolean constant. Execute command via shell and return complete output as string language. The AnnotationRegistry uses a namespace to directory separator approach to resolve the correct path. Missing directory separator when upgrading images types[-] Installer: Switch test of session. PHP classes that the framework will attempt to autoload at runtime. Create the file subfile.php in the same directory as mymainfile. Or include after declaring the element (it is possible in PHP and won’t cause issues before execution). Every character in this directive is considered as separator!