分享程序员开发的那些事...
更新时间：2023-11-27 18:32:46
由于 redirect.php 每次访问时重定向或/&执行它是不可能的，但是使用简单的如果语句，我们可以允许Facebook调试器读取页面OG元标签如下
Since redirect.php redirects whenever it's accessed or/& executed it would be impossible, but with a simple if statement we can allow Facebook Debugger to read the page OG meta tags as below
PHP
<?php
if (in_array($_SERVER['HTTP_USER_AGENT'], array(
'facebookexternalhit/1.1 (+https://www.facebook.com/externalhit_uatext.php)',
'facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)'
))) {
header("HTTP/1.1 200 OK");
print '<html prefix="og: http://ogp.me/ns#">
<head>
<title>{title}</title>
<meta property="og:title" content="{OG Title}" />
<meta property="og:type" content="website" />
<meta property="og:url" content="http://example.com" />
<meta property="og:image" content="http://example.com/og_img.jpg" />
</head>
</html>';
}
else {
// You're not Facebook agent '__'
header('Location: mypage.html?test');
}
请记住，这只适用于导致索引此页面的问题的Facebook bot在Google或Twitter上，所以建议您使用JavaScript location.href 。
Keep in mind this works only with Facebook bot which causes problems with indexing this page on Google or Twitter, so I suggest you using JavaScript location.href instead.
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