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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 |
|---|---|
| 952 | |
| 953 | /** |
| 954 | * Filter the names and labels of the default image sizes. |
| 955 | * |
| 956 | * @since 3.3.0 |
| 957 | * |
| 958 | * @param array $size_names Array of image sizes and their names. Default values |
| 959 | * include 'Thumbnail', 'Medium', 'Large', 'Full Size'. |
| 960 | */ |
| 961 | $size_names = apply_filters( 'image_size_names_choose', array( |
| 962 | 'thumbnail' => __( 'Thumbnail' ), |
| 963 | 'medium' => __( 'Medium' ), |
| 964 | 'large' => __( 'Large' ), |
| 965 | 'full' => __( 'Full Size' ) |
| 966 | ) ); |
| 967 | |
| 968 | if ( empty($check) ) |
| 969 | $check = get_user_setting('imgsize', 'medium'); |
| 970 | |