<!DOCTYPE html PUBLIC …… の部分の意味は何ですか？ <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" " <html xmlns=" xml:lang="ja" lang="ja"> <head> <meta http-equiv="Content-Type" content="text/html;...--prophetes.ai

<!DOCTYPE html PUBLIC …… の部分の意味は何ですか？ <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" " <html xmlns=" xml:lang="ja" lang="ja"> <head> <meta http-equiv="Content-Type" content="text/html;charset=UTF-8" /> <title></title> </head> <body> <?php print 'Hello Word'; ?> </body> </html> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" " <html xmlns=" xml:lang="ja" lang="ja">

HTML / XHTML

"

XHTML 1.0 Transitional DOCTYPE

XML XHTML html

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*
* "Recommended Doctype Declarations to use in your Web document." \-- W3C QA
* "Namespaces in XML 1.0" \-- W3C
*
* XHTML \-- The Web KANZAKI
* XML \-- The Web KANZAKI
* XML \-- @IT XML
* xmlns \-- Web Design Lesson