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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
---|---|
702 | * @since 2.7.0 |
703 | * |
704 | * @param unknown_type $post |
705 | * @param unknown_type $check |
706 | * @return unknown |
707 | */ |
708 | function image_size_input_fields( $post, $check = '' ) { |
709 |
|
710 | // get a list of the actual pixel dimensions of each possible intermediate version of this image |
711 | $size_names = apply_filters( 'image_size_names_choose', array('thumbnail' => __('Thumbnail'), 'medium' => __('Medium'), 'large' => __('Large'), 'full' => __('Full Size')) ); |
712 |
|
713 | if ( empty($check) ) |
714 | $check = get_user_setting('imgsize', 'medium'); |
715 |
|
716 | foreach ( $size_names as $size => $label ) { |
717 | $downsize = image_downsize($post->ID, $size); |
718 | $checked = ''; |
719 |
|
720 | // is this size selectable? |