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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 |
|---|---|
| 1011 | * |
| 1012 | * The dynamic portion of the hook name, `$name`, refers to the key name |
| 1013 | * of the modification array. For example, 'header_textcolor', 'header_image', |
| 1014 | * and so on depending on the theme options. |
| 1015 | * |
| 1016 | * @since 2.2.0 |
| 1017 | * |
| 1018 | * @param mixed $current_mod The value of the active theme modification. |
| 1019 | */ |
| 1020 | return apply_filters( "theme_mod_{$name}", $mods[ $name ] ); |
| 1021 | } |
| 1022 | |
| 1023 | if ( is_string( $default ) ) { |
| 1024 | // Only run the replacement if an sprintf() string format pattern was found. |
| 1025 | if ( preg_match( '#(?<!%)%(?:\d+\$?)?s#', $default ) ) { |
| 1026 | // Remove a single trailing percent sign. |
| 1027 | $default = preg_replace( '#(?<!%)%$#', '', $default ); |
| 1028 | $default = sprintf( $default, get_template_directory_uri(), get_stylesheet_directory_uri() ); |
| 1029 | } |
| 1030 | } |
| 1031 | |
| 1032 | /** This filter is documented in wp-includes/theme.php */ |
| 1033 | return apply_filters( "theme_mod_{$name}", $default ); |
| 1034 | } |
| 1035 | |
| 1036 | /** |
| 1037 | * Updates theme modification value for the active theme. |
| 1038 | * |
| 1039 | * @since 2.1.0 |
| 1040 | * @since 5.6.0 A return value was added. |
| 1041 | * |
| 1042 | * @param string $name Theme modification name. |