Chapter_01-What is WEB.pdf

Introduction  HTML Javascript CSS PHP, ASP, … XML  HTML HyperText Markup Language set of markup tags Tag: describ different document content – content  Tags examples START TAG END TAG...

Introduction  HTML Javascript CSS PHP, ASP, … XML  HTML HyperText Markup Language set of markup tags Tag: describ different document content – content  Tags examples START TAG END TAG , ,... , ,... (optional) (none; "empty" tag)  Html document example First document this is my first page simple page example Browser  JavaScript Extension to HTML (client side) object-based scripting language is event-driven What is for – Interactivity with the page user: input - processing - output  CSS Control the page layout – fonts and text , Page background,..ect rule h2 { font-style : italic ; } property value selector declaration  PHP PHP document Consist: – HTML + JavaScript + CSS + PHP code HTML + JavaScript + CSS ➔ rendered at client side PHP code interpreted at server side ➔ result any thing, but usually html tags + JavaScript + CSS ➔ rendered at client side embedded within a tag  PHP PHP test