php warning issue

Hi @cfm168 – could you please check for me if this error still occurs when you have no plugins activated on the site?

I can find these two warnings when visiting the attachment page for an SVG because WordPress does not set their (full-size) dimensions in metadata.

Unless you would prefer disabling all image attachment pages, you could try adding a filter to set both SVG dimensions to 0:

function svg_attachment_metadata_dimensions( $data ) {
	if (
		( ! isset( $data['width'] ) || ! isset( $data['height'] ) )
		&& isset( $data['sizes']['thumbnail']['mime-type'] )
		&& $data['sizes']['thumbnail']['mime-type'] === 'image/svg+xml'
	) {
		$data['width'] = 0;
		$data['height'] = 0;
	}
	return $data;
}
add_filter( 'wp_get_attachment_metadata', 'svg_attachment_metadata_dimensions', 10, 1 );