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Function Name: wp_get_attachment_metadata

If you’re building a WordPress site with media content, chances are you’ll need to work with image or file attachments at some point. One handy function to know is wp_get_attachment_metadata, which retrieves the metadata for a specified attachment. This includes information such as the image dimensions, file type, and any additional data that may have been added by plugins or themes.

The wp_get_attachment_metadata function takes the attachment ID as a parameter and returns an array of metadata. This metadata can be used to customize how the attachment is displayed, or to perform additional processing on the image or file.

Here’s an example usage code:

$attachment_id = 123;
$attachment_metadata = wp_get_attachment_metadata($attachment_id);

// Get the image dimensions
$image_width = $attachment_metadata['width'];
$image_height = $attachment_metadata['height'];

// Display the image with a custom size
$image_url = wp_get_attachment_url($attachment_id);
echo '<img src="' . $image_url . '" width="500" height="500" />';

In this example, we first retrieve the metadata for an attachment with the ID of 123 using wp_get_attachment_metadata. We then use this metadata to get the image dimensions and display the image with a custom size.

Overall, wp_get_attachment_metadata is a useful function for working with attachments in WordPress, and can be used to customize how media content is displayed on your site.

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