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rbarros/Metatag.php

Created June 22, 2012 19:12
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Classe para criação das tags <meta>
Raw
Metatag.php
<?php
require_once('Elements.php');
/**
* Metatag Application
*
* An open source application development framework for PHP 5.1.6 or newer
*
* @package HTML
* @category Classes
* @author Ramon Barros
* @copyright Copyright (c) 2012, Ramon Barros.
* @license http://www.ramon-barros.com/
* @link http://public.ramon-barros.com/
* @since Version 1.9.12
* @filesource Metatag.php
*/
/**
* Interface Metatag
* Interface para definição das tags necessárias
* @author Ramon Barros
* @copyright Copyright (c) 2012, Ramon Barros.
*/
interface Metatag {
/**
* Define as funções necessárias para criação da metatag
*/
public function setMeta( $meta = array() );
public function getMeta();
public function getArrayMetatag();
public function getMetatag($meta);
public function createMetatag();
}
/**
* Meta Class
*
* Classe regação da tag <meta>
*
* @package Metatag
* @subpackage Libraries
* @category HTML
* @author Ramon Barros
* @link http://public.ramon-barros.com/
*/
class Meta implements Metatag {
/**
* @var array
*/
private $meta;
/**
* @var array
*/
private $meta_attr;
/**
* @var array
*/
private $metatag;
/**
* @var array
*/
private $returnMeta;
/**
* @var array
*/
private $tag;
/**
* Constroi o objeto que representa as tags meta
* @param array $meta
*/
public function __construct( $meta = array() ){
$this->meta_attr = array(
'article'=>array(
array('property'=>'og:title','content'=>'Titulo da página'),
array('property'=>'og:type','content'=>'article'),
array('property'=>'og:url','content'=>'Url completa da página'),
array('property'=>'og:image','content'=>'Logo do da página'),
array('property'=>'og:site_name','content'=>'Página'),
array('property'=>'og:locale','content'=>'pt_BR'),
array('property'=>'article:section','content'=>'Página'),
array('property'=>'article:published_time','content'=>'0000-00-00T00:00:00'),
array('property'=>'fb:app_id','content'=>'')
),
'website'=>array(
array('property'=>'og:title','content'=>'Titulo da página'),
array('property'=>'og:type','content'=>'article'),
array('property'=>'og:url','content'=>'Url completa da página'),
array('property'=>'og:image','content'=>'Logo do site'),
array('property'=>'og:site_name','content'=>'Rio Grande do Sul'),
array('property'=>'og:description','content'=>'Descrição da Página')
),
'title'=>array(
array('name'=>"title",'content'=>"Titulo da Página")
),
'keywords'=>array(
array('name'=>"keywords",'content'=>"sites, web, desenvolvimento, html, design")
),
'description'=>array(
array('name'=>"description",'content'=>"Meta Tags description")
),
'content-language'=>array(
array('http-equiv'=>"content-language",'content'=>"pt-br")
),
'content-type'=>array(
array('http-equiv'=>"content-type",'content'=>"text/html; charset=iso-8859-1")
),
'refresh'=>array(
array('http-equiv'=>"refresh",'content'=>" 5 ;url=http://www.ramon-barros.com/")
),
'author'=>array(
array('name'=>"author",'content'=>"Ramon Barros")
),
'copyright'=>array(
array('name'=>"copyright",'content'=>"Ramon Barros")
),
'email'=>array(
array('name'=>"email",'content'=>"[email protected]")
),
'charset'=>array(
array('name'=>"charset",'content'=>"ISO-8859-1")
),
'distribution'=>array(
array('name'=>"distribution",'content'=>"Global")
),
'rating'=>array(
array('name'=>"rating",'content'=>"General")
),
'revisit-after'=>array(
array('name'=>"revisit-after",'content'=>"1 Day")
),
'reply-to'=>array(
array('name'=>'reply-to','content'=>'[email protected]')
),
'generator'=>array(
array('name'=>"generator",'content'=>"Microsoft FrontPage 5.0")
),
'robots'=>array(
array('name'=>"robots",'content'=>"index,follow")
),
'googlebot'=>array(
array('name'=>"robots",'content'=>"index,follow")
),
'google-site-verification'=>array(
array('name'=>"google-site-verification",'content'=>"")
),
'ie5'=>array(
array('http-equiv'=>"X-UA-Compatible",'content'=>"IE=5") // Quirks Mode
),
'ie7'=>array(
array('http-equiv'=>"X-UA-Compatible",'content'=>"IE=7") // IE7 Standards
),
'ie8'=>array(
array('http-equiv'=>"X-UA-Compatible",'content'=>"IE=8") // IE8 Standards
),
'ie9'=>array(
array('http-equiv'=>"X-UA-Compatible",'content'=>"IE=9") // IE9 Standards
),
'ie-edge'=>array(
array('http-equiv'=>"X-UA-Compatible",'content'=>"IE=edge") //The latest standards - never use in production!
)
);
$this->tag = $this->meta_attr;
$this->setMeta( $meta )->createMetatag();
}
/**
* Define as tags <meta> a serem criadas.
* @param array $meta
* @return object
*/
public function setMeta( $meta = array() ){
$this->meta = $meta;
return $this;
}
/**
* Recupera o array contendo as informações da tag <meta>.
* @return array $meta
*/
public function getMeta(){
return $this->meta;
}
/**
* Recupera o array contendo as tag <meta> criadas.
* @return array $metatag
*/
public function getArrayMetatag(){
return $this->metatag;
}
/**
* Recupera o array contendo as tag <meta> criadas referente ao atributo informado.
* @param string $meta
* @return array $metatag
*/
public function getMetatag($meta){
return $this->metatag[$meta];
}
/**
* Valida se o atributo informado possui :
* @param string $value
* @return bool
*/
private function checkContent($value){
if(preg_match('/([^:]+)[:]([^*]+)/', $value)){
return true;
}else{
return false;
}
}
/**
* Recupera o atributo e o valor informado
* @param string $value
* @return array $content
*/
private function getContent($value){
preg_match('/([^:]+)[:]([^*]+)/', $value , $content);
return $content;
}
/**
* Atualiza somente as tag <meta> informadas preservando a configuração.
*
* @param string $metakey Chave que identifica a tag <meta>.
* @param int $tagkey Chave que identifica o array onde será modificado o valor.
* @param array $metavalue Array contendo os atributos e valores a serem modificados.
* @param string $attr Atributo e valor do array de configuração $meta_attr;
* @param string $value Atributo e valor do array de configuração $meta_attr;
*/
private function updateContent($metakey,$tagkey,$metavalue,$attr,$value){
foreach ($metavalue as $attrmeta => $valuemeta) {
if($this->checkContent($valuemeta)){
$getContent = $this->getContent($valuemeta);
$property = $getContent[1];
$content = $getContent[2];
if(strpos($value,$property)===false){
}else{
$this->returnMeta[$metakey][$tagkey][$attr]=$value;
$this->returnMeta[$metakey][$tagkey]['content']=$content;
}
}else{
$this->returnMeta[$metakey][$tagkey][$attr]=$value;
$this->returnMeta[$metakey][$tagkey]['content']=$valuemeta;
}
}
}
/**
* Criação das tags <meta>, verificando se o atributo informado conrresponde no array $meta_attr de configuração.
*/
public function createMetatag(){
if ( count( $this->meta ) > 0 ) {
foreach ($this->meta as $metakey => $metavalue)
{
if( in_array( $metakey , array_keys($this->tag) ) && is_array($metavalue) )
{
foreach ($this->tag[$metakey] as $tagkey => $tagvalue) {
foreach ($this->tag[$metakey][$tagkey] as $attr => $value) {
$this->updateContent($metakey,$tagkey,$metavalue,$attr,$value);
}
}
}else{
if(in_array( $metavalue , array_keys($this->tag) )){
foreach ($this->tag[$metavalue] as $tagkey => $tagvalue) {
foreach ($this->tag[$metavalue][$tagkey] as $attr => $value) {
$this->returnMeta[$metavalue][$tagkey][$attr]=$value;
}
}
}else{
throw new BadMethodCallException( 'Chave não encontrada.'.$metakey.':'. $metavalue );
}
}
}
}else{
throw new BadMethodCallException( 'Nenhuma meta tag definida.' );
}
return $this;
}
/**
* Carrega as tags <meta> no documento.
* @return void
*/
public function loadMetaTag(){
if(count( $this->returnMeta )>0){
foreach ($this->returnMeta as $metaKey => $metaValue) {
foreach ($this->returnMeta[$metaKey] as $key => $value) {
$tag = new tag('meta',$this->returnMeta[$metaKey][$key] );
$this->metatag[$metaKey] = $tag->get();
echo $tag->get();
}
}
}else{
throw new BadMethodCallException( 'Nenhuma meta tag definida.' );
}
}
}
$t = array(
'article'=>array(
'title:Titulo da Página - Ramon Barros',
'type:article'
),
'author'=>array('Ramon Barros'),
'content-type'=>array('text/html; charset=iso-8859-1'),
'ie7',
'ie8',
'ie9'
);
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<?php
$meta = new Meta($t);
$meta->loadMetaTag();
?>
<title>Teste MetaTag</title>
</head>
<body>
</body>
</html>
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