WordPress `get_the_post_thumbnail` Source URL

olatechpro

May 18, 20231 Views

This will return a fully formatted HTML <img ... > tag.

$thumb_id = $post->ID;

$pictureLink = get_the_post_thumbnail($thumb_id, 'medium');

What function can I use to get the ‘src’ tag value?

I tried some other WP functions for attachments but these did not return anything useful for some reason.

I will accept a WP function or a parser that will extract the src tag’s value.

Update:
Parser that will extract the src tag’s value.

$doc = new DOMDocument();
$doc->loadHTML($pictureLinkHtml);
$xpath = new DOMXPath($doc);
$pictureLink = $xpath->evaluate("string(//img/@src)");

Post Views: 1

2 comments

Anonymous says:

May 18, 2023 at 11:33 am
You can do this a lot easier than parsing it. First you need to get the attachment ID from the post ID. then you can grab the source which includes the URL, width and height. Here is more information.
```
$image_id = get_post_thumbnail_id($post->ID);
$image = wp_get_attachment_image_src($image_id, 'large');

echo $image[0]; 
```

You could use:

$thumb_src = wp_get_attachment_image_src($thumb_id, 'medium');

if ($thumb_src) {
    list($thumb_src) = $thumb_src;
    echo "Source of thumb is $thumb_src";
}

See wp_get_attachment_image_src reference.

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