The PHP language evolved without a written formal specification or standard until 2014, with the original implementation acting as the de facto standard which other implementations aimed to follow. Since 2014, work has gone on to create a formal PHP specification.
In addition to HTML, other markup languages support the use of CSS including XHTML, plain XML, SVG, and XUL.
Separation of formatting and content also makes it feasible to present the same markup page in different styles for different rendering methods, such as on screen, in print, by voice (via speech based browser or screen reader), and on Braille based tactile devices. CSS also has rules for alternate formatting if the content is accessed on a mobile device.
With Php, you can add unlimited additional features to your Website or Web Page, such as Forms, Sliders, Galleries, Posts and even Chatrooms.