PHP 是一种 HTML 内嵌式的语言，是一种在服务器端执行的嵌入HTML文档的脚本语言，语言的风格有类似于C语言，被广泛地运用，本文档时php的帮助文档，方便php的查询与学习。-PHP is an HTML-embedded language is executed on the server side scr ipting language embedded in HTML documents, the language style is similar to the C language