Filters whether to preempt calculating the image resize dimensions.

Returning a non-null value from the filter will effectively short-circuit image_resize_dimensions() , returning that value instead.

$null null|mixed

Whether to preempt output of the resize dimensions.

$orig_w int

Original width in pixels.

$orig_h int

Original height in pixels.

$dest_w int

New width in pixels.

$dest_h int

New height in pixels.

$crop bool|array

Whether to crop image to specified width and height or resize.
An array can specify positioning of the crop area. Default false.

• Since version 3.4, the image_resize_dimensions filter is used to filter the thumbnail and alternative sizes dimensions of image assets during resizing operations. This enables the override of WordPress default behavior on image resizing, including the thumbnail cropping.
• Note that the filter function must return an array matching the parameters to imagecopyresampled(), or false if the resizing is impossible, or should not occur, or null to fallback to WordPress default behavior.

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

$output = apply_filters( 'image_resize_dimensions', null, $orig_w, $orig_h, $dest_w, $dest_h, $crop );