apply_filters( ‘image_downsize’, bool|array $downsize, int $id, string|int[] $size )

Filters whether to preempt the output of image_downsize() .

Description

Returning a truthy value from the filter will effectively short-circuit down-sizing the image, returning that value instead.

$downsizebool|array: Whether to short-circuit the image downsize.
$idint: Attachment ID for image.
$sizestring|int[]: Requested image size. Can be any registered image size name, or an array of width and height values in pixels (in that order).

$out = apply_filters( 'image_downsize', false, $id, $size );

Used by	Description
wp_prepare_attachment_for_js()`wp-includes/media.php`	Prepares an attachment post object for JS, where it is expected to be JSON-encoded and fit into an Attachment model.
image_downsize()`wp-includes/media.php`	Scales an image to fit a particular size (such as ‘thumb’ or ‘medium’).

Version	Description
2.5.0	Introduced.

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