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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.
This hook occurs 2 times in this file.
| Line | Code |
|---|---|
| 862 | * The dynamic portion of the hook name, `$name`, refers to |
| 863 | * the key name of the modification array. For example, |
| 864 | * 'header_textcolor', 'header_image', and so on depending |
| 865 | * on the theme options. |
| 866 | * |
| 867 | * @since 2.2.0 |
| 868 | * |
| 869 | * @param string $current_mod The value of the current theme modification. |
| 870 | */ |
| 871 | return apply_filters( "theme_mod_{$name}", $mods[$name] ); |
| 872 | } |
| 873 | |
| 874 | if ( is_string( $default ) ) |
| 875 | $default = sprintf( $default, get_template_directory_uri(), get_stylesheet_directory_uri() ); |
| 876 | |
| 877 | /** This filter is documented in wp-includes/theme.php */ |
| 878 | return apply_filters( "theme_mod_{$name}", $default ); |
| 879 | } |
| 880 | |
| 881 | /** |
| 882 | * Update theme modification value for the current theme. |
| 883 | * |
| 884 | * @since 2.1.0 |
| 885 | * |
| 886 | * @param string $name Theme modification name. |
| 887 | * @param mixed $value Theme modification value. |