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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 |
|---|---|
| 902 | * The dynamic portion of the hook name, `$name`, refers to |
| 903 | * the key name of the modification array. For example, |
| 904 | * 'header_textcolor', 'header_image', and so on depending |
| 905 | * on the theme options. |
| 906 | * |
| 907 | * @since 2.2.0 |
| 908 | * |
| 909 | * @param string $current_mod The value of the current theme modification. |
| 910 | */ |
| 911 | return apply_filters( "theme_mod_{$name}", $mods[ $name ] ); |
| 912 | } |
| 913 | |
| 914 | if ( is_string( $default ) ) { |
| 915 | $default = sprintf( $default, get_template_directory_uri(), get_stylesheet_directory_uri() ); |
| 916 | } |
| 917 | |
| 918 | /** This filter is documented in wp-includes/theme.php */ |
| 919 | return apply_filters( "theme_mod_{$name}", $default ); |
| 920 | } |
| 921 | |
| 922 | /** |
| 923 | * Update theme modification value for the current theme. |
| 924 | * |
| 925 | * @since 2.1.0 |
| 926 | * |
| 927 | * @param string $name Theme modification name. |
| 928 | * @param mixed $value Theme modification value. |