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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 |
|---|---|
| 758 | * For settings handled as theme_mods or options, see those corresponding |
| 759 | * functions for available hooks. |
| 760 | * |
| 761 | * @since 3.4.0 |
| 762 | * @since 4.6.0 Added the `$this` setting instance as the second parameter. |
| 763 | * |
| 764 | * @param mixed $default The setting default value. Default empty. |
| 765 | * @param WP_Customize_Setting $setting The setting instance. |
| 766 | */ |
| 767 | $value = apply_filters( "customize_value_{$id_base}", $value, $this ); |
| 768 | } elseif ( $this->is_multidimensional_aggregated ) { |
| 769 | $root_value = self::$aggregated_multidimensionals[ $this->type ][ $id_base ]['root_value']; |
| 770 | $value = $this->multidimensional_get( $root_value, $this->id_data['keys'], $this->default ); |
| 771 | |
| 772 | // Ensure that the post value is used if the setting is previewed, since preview filters aren't applying on cached $root_value. |
| 773 | if ( $this->is_previewed ) { |
| 774 | $value = $this->post_value( $value ); |
| 775 | } |
| 776 | } else { |