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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 |
|---|---|
| 4090 | |
| 4091 | if ( current_user_can( 'delete_post', $attachment->ID ) ) { |
| 4092 | $response['nonces']['delete'] = wp_create_nonce( 'delete-post_' . $attachment->ID ); |
| 4093 | } |
| 4094 | |
| 4095 | if ( $meta && ( 'image' === $type || ! empty( $meta['sizes'] ) ) ) { |
| 4096 | $sizes = array(); |
| 4097 | |
| 4098 | /** This filter is documented in wp-admin/includes/media.php */ |
| 4099 | $possible_sizes = apply_filters( |
| 4100 | 'image_size_names_choose', |
| 4101 | array( |
| 4102 | 'thumbnail' => __( 'Thumbnail' ), |
| 4103 | 'medium' => __( 'Medium' ), |
| 4104 | 'large' => __( 'Large' ), |
| 4105 | 'full' => __( 'Full Size' ), |
| 4106 | ) |
| 4107 | ); |
| 4108 | unset( $possible_sizes['full'] ); |