我正在尝试在元内容中的og：image中设置图像。它来自字节数组值，所以我对如何正确显示/调用它感到困惑。 这是代码段
下面的是来自@Alain
的字节数组值
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neDxTvyXX//Z";
当我在页面上显示它时，它正在使用此
完美地工作$display="<img src='data:image/jpeg;base64, ".$imgData."' />";
print($display);
但是当我试图把它放在元内容中时，它不起作用
<meta property="og:image" content="<?php print($display); ?>" />
任何人都可以帮助我如何在元内容中调用/显示图像。谢谢和亲切的问候。
更新
我创建了新的php文件，所以我可以从它生成一个链接，它也可以显示图像..
image.php
$fix2=base64_decode($imgData);
if (substr($fix2, 0, 4) == "\x89PNG") header('Content-Type: image/png');
else if (substr($fix2, 0, 2) == "\xFF\xD8") header('Content-Type: image/jpeg');
else if (substr($fix2, 0, 4) == "GIF8") header('Content-Type: image/gif');
echo $fix2;
然后og：图像内容将像这样调用 image.php
<meta property='og:image' content='http://yourwebsite/image.php' />
希望这会有所帮助。