image_send_to_editor WordPress Filter Hook

The image_send_to_editor hook allows you to modify the image before it is inserted into the post editor. This is useful for setting custom sizes or adding alignments.

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.

Parameters
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Changelog

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.