Как отобразить изображение байтового массива в метатеге

Я пытаюсь установить изображение в og: image в мета-контент. Это из значения байтового массива, поэтому я не совсем понимаю, как правильно его отобразить / вызвать.
Вот фрагмент кода

ниже значение байтового массива из @Alain

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neDxTvyXX//Z";

Когда я показываю это на странице, он отлично работает, используя это

$display="<img src='data:image/jpeg;base64, ".$imgData."' />";
print($display);

Но когда я попытался поместить это в мета-контент, это не сработало

<meta property="og:image" content="<?php print($display); ?>" />

Может кто-нибудь, пожалуйста, помогите мне, как я могу вызвать / отобразить изображение внутри мета-контента. Спасибо и добрые пожелания.

ОБНОВИТЬ
Я создал новый файл php, чтобы я мог сгенерировать ссылку на него, и он может отображать изображение тоже ..

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;

а затем содержимое og: image просто вызовет image.php как это

<meta property='og:image' content='http://yourwebsite/image.php' />

Надеюсь, это поможет.