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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 |
|---|---|
| 913 | * The dynamic portion of the hook name, $name, refers to |
| 914 | * the key name of the modification array. For example, |
| 915 | * 'header_textcolor', 'header_image', and so on depending |
| 916 | * on the theme options. |
| 917 | * |
| 918 | * @since 2.2.0 |
| 919 | * |
| 920 | * @param string $current_mod The value of the current theme modification. |
| 921 | */ |
| 922 | return apply_filters( "theme_mod_{$name}", $mods[$name] ); |
| 923 | } |
| 924 | |
| 925 | if ( is_string( $default ) ) |
| 926 | $default = sprintf( $default, get_template_directory_uri(), get_stylesheet_directory_uri() ); |
| 927 | |
| 928 | /** This filter is documented in wp-includes/theme.php */ |
| 929 | return apply_filters( "theme_mod_{$name}", $default ); |
| 930 | } |
| 931 | |
| 932 | /** |
| 933 | * Update theme modification value for the current theme. |
| 934 | * |
| 935 | * @since 2.1.0 |
| 936 | * |
| 937 | * @param string $name Theme modification name. |
| 938 | * @param string $value theme modification value. |