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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 |
|---|---|
| 1071 | * The dynamic portion of the hook name, `$name`, refers to the key name |
| 1072 | * of the modification array. For example, 'header_textcolor', 'header_image', |
| 1073 | * and so on depending on the theme options. |
| 1074 | * |
| 1075 | * @since 3.9.0 |
| 1076 | * |
| 1077 | * @param mixed $value The new value of the theme modification. |
| 1078 | * @param mixed $old_value The current value of the theme modification. |
| 1079 | */ |
| 1080 | $mods[ $name ] = apply_filters( "pre_set_theme_mod_{$name}", $value, $old_value ); |
| 1081 | |
| 1082 | $theme = get_option( 'stylesheet' ); |
| 1083 | |
| 1084 | return update_option( "theme_mods_$theme", $mods ); |
| 1085 | } |
| 1086 | |
| 1087 | /** |
| 1088 | * Removes theme modification name from active theme list. |
| 1089 | * |