apply_filters( 'image_send_to_editor', string $html, int $id, string $caption, string $title, string $align, string $url, string|int[] $size, string $alt, string $rel )

Filters the image HTML markup to send to the editor when inserting an image.

Contents

Parameters

$html string
The image HTML markup to send.
$id int
The attachment ID.
$caption string
The image caption.
$title string
The image title.
$align string
The image alignment.
$url string
The image source URL.
$size string|int[]
Requested image size. Can be any registered image size name, or an array of width and height values in pixels (in that order).
$alt string
The image alternative, or alt, text.
$rel string
The image rel attribute.

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Source

File: wp-admin/includes/media.php. View all references 

$html = apply_filters( 'image_send_to_editor', $html, $id, $caption, $title, $align, $url, $size, $alt, $rel );

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Changelog

Changelog
Version Description
5.6.0 The $rel parameter was added.
2.5.0 Introduced.

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User Contributed Notes

  1. Skip to note 1 content
    You must log in to vote on the helpfulness of this noteVote results for this note: 0You must log in to vote on the helpfulness of this note
    Contributed by Razon Komar Pal —

    Add custom field to media attachment image attribute in post editor

    /**   
 * Add the data-media-description and data-media-full attributes to inserted image tag. 
 */
add_filter( 'image_send_to_editor', 'add_custom_data_attribute_send_to_editor', 10, 8 );
function add_custom_data_attribute_send_to_editor( $html, $id, $caption, $title, $align, $url, $size, $alt ){  
	if( $id > 0 ){
		$post = get_post( $id );
		$media_data = array(
			$post->ID, // media id[0]
			$post->post_content, // media description
			$post->post_excerpt // media caption
		);			
		$img_size = wp_get_attachment_image_src($id, 'full'); // get media full size url
		$data  = sprintf( ' data-media-description="%s"', esc_attr( $media_data[1] ) ); // set data-media-description
		$data .= sprintf( ' data-media-url="%s" ', esc_url( $img_size[0] ) ); // set data-media-url
		$html = str_replace( "<img src", "<img{$data}src", $html ); // replace and add custom attributes
	}
	return $html;
}

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