php中 getDoctype方法代碼示例

admin · 发表于 2022-4-6 18:47:56

[mw_shl_code=php,true]<?php
/**
* gaetDoctype
*
* Copyright 2016 by demon.devin <daemon.devin@gmail.com>
* Created on 10-07-2016
*
* getDoctype is free software; you can redistribute it and/or modify it under the
* terms of the GNU General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option) any later
* version.
*
* getDoctype is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* getDoctype; if not, write to the Free Software Foundation, Inc., 59 Temple
* Place, Suite 330, Boston, MA 02111-1307 USA
*
* @package getdoctype
*/
/**
* getDoctype
*
* @author    daemon.devin
* @link    PortableAppz.x10.mx/
* @copyright  2016
* @package getDoctype
* @version 1.0
*
* With this snippet you will have the ability to display the DOCTYPE while sending the
* correct headers with support for content type negotiation.
*
* It also will correct itself for the W3C validator which does not send the correct Accept
* header for XHTML documents.
*
* Does NOT send XHTML 1.1 to browsers that wont accept application/xhtml+xml because the
* snippet will make sure the browser groks XML before sending anything.
* visit: labs/PHP/DOCTYPE.php#bug-fix for details and a link to the W3C XHTML for more
*
*
* PROPERTIES
* $doc    string required Defaults: XHTML
* Either HTML or XHTML
*
* $type    string optional Defaults:  Strict
* One of three chooses between Strict, Transitional, or Frameset
*
* $ver    string optional Defaults: 1.1
* For XHTML: 1.0 or 1.1 | For HTML5: 5
*
* $charset string optional
*
* $lang    string optional
*
* $s       string optional Defaults: ' '
* Specify prefered indentation. Either '\t' (tab) or ' ' (whitespace) or any combination
*
* USAGE
* require_once('getDoctype.inc.php');
*
* EXAMPLE
* To specify html5 use the following:
* $doc='html'
* $ver='5'
*
* Output:
* <!DOCTYPE html>
* <html lang="en">
*  <head>
* <meta charset="UTF-8">
*
* To specify XHTML using Strict with version 1.1 use the following:
* $doc='xhtml'
* $type='strict'
* $ver='1.1'
*
* NOTE: This sends the XML declaration before the DOCTYPE
*    but this will put IE into quirks mode which we don't
*    want so it omits it for IE
*
* Output:
* <?xml version="1.0" encoding="utf-8"?>
* <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
*  "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
* <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
*
*/

$doc    = ''; // html or xhtml
$type = ''; // choose between strict, transitional, or frameset
$ver    = ''; // XHTML: 1.0 or 1.1 | HTML: 4.01 or 5
$charset = ''; // Charset (i.e. UTF-8)
$lang = ''; // Language (i.e. en)
$s    = ''; // Indentation. Either '\t' (tab) or ' ' (whitespace) or any combination.

$output = '';

$media = array('HTML' => 'text/html', 'XHTML' => 'application/xhtml+xml');

$doc = strtoupper($doc);
$type = strtolower($type);

$avail = 'PUBLIC'; // or SYSTEM, but we're not going there yet

// begin FPI
$ISO = '-'; // W3C is not ISO registered [or IETF for that matter]
$OID = 'W3C'; // unique owner ID
$PTC = 'DTD'; // the public text class

$PTD = '';
$PCL = 'EN'; // as far as I know the PCL is always English
$URI = 'http://www.w3.org/TR/'; // DTDs are all under the Technical Reports (TR) branch @ W3C

$doc_top = '<html'; // what comes after the DOCTYPE of course
$meta = '<meta ';

if($doc == 'HTML') {

if($ver == '5') {

$top = 'html';
$media_type = $media['HTML'];
$meta .= 'charset="'.strtoupper($charset).'" />';

}
else {

$top = $doc;
$media_type = $media[$doc];

$PTD = $doc.' 4.01'; // we're only supporting HTML 4.01 here

switch ($type) {

case 'frameset':

$PTD .= ' '.ucfirst($type);
$URI .= 'html4/frameset.dtd';
break;

case 'transitional':

$PTD .= ' '.ucfirst($type);
$URI .= 'html4/loose.dtd';
break;

case 'strict':
default:

$URI .= 'html4/strict.dtd';
}
$meta .= "http-equiv=\"Content-Type\" content=\"$media_type; charset=".strtoupper($charset)."\">";
}
$doc_top .= ' lang="'.$lang.'">';

}
else {

// must be xhtml then, but catch typos

//if($doc != 'XHTML')
$doc = 'XHTML';

$top = 'html'; // remember XML is lowercase
$doc_top .= ' xmlns="http://www.w3.org/1999/xhtml" xml:lang="'.$lang.'"';

// return the correct media type header for this document,
// but we should probably make sure the browser groks XML!

// the W3C validator does not send the correct Accept header for this family of documents, sigh
if(stristr($_SERVER['HTTP_USER_AGENT'], 'W3C_Validator')) $media_type = $media['XHTML'];
else  $media_type = (stristr($_SERVER['HTTP_ACCEPT'], $media['XHTML']))?$media['XHTML']

media['HTML'];

// do NOT send XHTML 1.1 to browsers that don't accept application/xhtml+xml
// see: labs/PHP/DOCTYPE.php#bug-fix for details and a link to the W3C XHTML
// NOTES on this topic

if($media_type == $media['HTML'] and $ver == '1.1') $ver = '1.0';

if($ver == '1.1') {
$PTD = implode(' ', array($doc, $ver));
$URI .= 'xhtml11/DTD/xhtml11.dtd';
}
else {
$PTD = implode(' ', array(
$doc,
'1.0',
ucfirst($type)));
$URI .= 'xhtml1/DTD/xhtml1-'.$type.'.dtd';

// for backwards compatibilty

$doc_top .= ' lang="'.$lang.'"';
}

$doc_top .= '>'; // close root XHTML tag

// send HTTP header
header('Content-type: '.$media_type.'; charset='.$charset);

// send the XML declaration before the DOCTYPE, but this
// will put IE into quirks mode which we don't want
if(isset($_SERVER['HTTP_USER_AGENT']) && ((strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE') == false) || strpos($_SERVER['HTTP_USER_AGENT'],
'Trident') == false)) {
$output .= '<?xml version="1.0" encoding="'.$charset.'"?>'.PHP_EOL;
}

$meta .= "http-equiv=\"Content-Type\" content=\"$media_type; charset=".strtoupper($charset)."\" />";

}

$FPI = implode('//', array(
$ISO,
$OID,
$PTC.' '.$PTD,
$PCL));

if($doc == 'HTML' && $ver == '5') {
$output .= '<!DOCTYPE '.$top.'>'.PHP_EOL;
$output .= $doc_top.PHP_EOL;
$output .= "$s<head>".PHP_EOL;
$output .= "$s$s$meta".PHP_EOL;
}
else {
$output .= "<!DOCTYPE $top $avail \"$FPI\" ".PHP_EOL."$s\"$URI\">".PHP_EOL."$doc_top".PHP_EOL."$s<head>".PHP_EOL."$s$s".
$meta.PHP_EOL;
}
return $output;[/mw_shl_code]

		自动登录	找回密码
密码			立即注册