Nik*_*las 0 php schema.org json-ld amp-html
我在使用"php-json-ld"(github.com/digitalbazaar/php-json-ld)打印Google Accelerated Pages(AMP,www.ampproject.org)的正确JSONLD时遇到问题,如本例所示:github.com /ampproject/amphtml/blob/master/examples/metadata-examples/article-json-ld.amp.html
更具体地说:我想知道如何使用php-json-ld的函数添加"@type":"NewsArticle":
$doc = (object)array(
"https://schema.org/article" => 'Article',
"http://schema.org/name" => "Manu Sporny",
"http://schema.org/url" => (object)array("@id" => "http://manu.sporny.org/"),
"http://schema.org/image" => (object)array("@id" => "http://manu.sporny.org/images/manu.png")
);
$context = (object)array(
"article" => (object)array("https://schema.org/Article"),
"name" => "http://schema.org/name",
"homepage" => (object)array("@id" => "http://schema.org/url", "@type" => "@id"),
"image" => (object)array("@id" => "http://schema.org/image", "@type" => "@id")
);
//Print Json-LP
echo '<script type="application/ld+json">';
echo json_encode($jsonld_compacted,
JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES);
echo '</script>';
//Result:
<script type="application/ld+json">{
"@context": "http://schema.org",
"image": "http://manu.sporny.org/images/manu.png",
"name": "Manu Sporny",
"url": "http://manu.sporny.org/"
}</script>
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有人可以帮忙吗?
Mar*_*ler 11
如果您不需要转换JSON-LD,则不需要php-json-ld(或任何其他库).您序列化为JSON的简单关联数组就足够了:
$data = array(
"@context" => "http://schema.org",
"@type" => "NewsArticle",
...
);
...
echo json_encode($data, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES);
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非常感谢Markus Lanthaler的回答,这对我帮助很大。我对他的回答只有一点补充:
如果您使用像 post_title 这样的变量,字符会被自动编码,这将导致格式错误的 JSON-LD。解决这个问题的方法是首先解码像标题这样的变量:
html_entity_decode(get_the_title($post->ID),ENT_QUOTES,'UTF-8');
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在回显 json_encode 时,您还应该添加 JSON_UNESCAPED_UNICODE,以进行正确的编码。
所以你的回声应该是这样的:
echo json_encode($data, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);
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