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Media: Improve documentation for `add_image_size()`

This improves the description of the `$crop` parameter to clarify behavior.

Props nikolastoqnow, ketuchetan, audrasjb, killua99, pierlo.
Fixes #42463.

git-svn-id: 602fd350-edb4-49c9-b593-d223f7449a82
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joemcgill committed Oct 3, 2019
1 parent 37cdffd commit 0c66e65b42ac78bdcaf1b464b27c833b6e83fac8
Showing with 6 additions and 10 deletions.
  1. +6 −10 src/wp-includes/media.php
@@ -268,23 +268,19 @@ function image_downsize( $id, $size = 'medium' ) {
* Register a new image size.
* Cropping behavior for the image size is dependent on the value of $crop:
* 1. If false (default), images will be scaled, not cropped.
* 2. If an array in the form of array( x_crop_position, y_crop_position ):
* - x_crop_position accepts 'left' 'center', or 'right'.
* - y_crop_position accepts 'top', 'center', or 'bottom'.
* Images will be cropped to the specified dimensions within the defined crop area.
* 3. If true, images will be cropped to the specified dimensions using center positions.
* @since 2.9.0
* @global array $_wp_additional_image_sizes Associative array of additional image sizes.
* @param string $name Image size identifier.
* @param int $width Optional. Image width in pixels. Default 0.
* @param int $height Optional. Image height in pixels. Default 0.
* @param bool|array $crop Optional. Whether to crop images to specified width and height or resize.
* An array can specify positioning of the crop area. Default false.
* @param bool|array $crop Optional. Image cropping behavior. If false, the image will be scaled (default),
* If true, image will be cropped to the specified dimensions using center positions.
* If an array, the image will be cropped using the array to specify the crop location.
* Array values must be in the format: array( x_crop_position, y_crop_position ) where:
* - x_crop_position accepts: 'left', 'center', or 'right'.
* - y_crop_position accepts: 'top', 'center', or 'bottom'.
function add_image_size( $name, $width = 0, $height = 0, $crop = false ) {
global $_wp_additional_image_sizes;

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