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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 |
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680 | } |
681 |
|
682 | /** |
683 | * Fires once the Customizer theme preview has started. |
684 | * |
685 | * @since 3.4.0 |
686 | * |
687 | * @param WP_Customize_Manager $this WP_Customize_Manager instance. |
688 | */ |
689 | do_action( 'start_previewing_theme', $this ); |
690 | } |
691 |
|
692 | /** |
693 | * Stop previewing the selected theme. |
694 | * |
695 | * Removes filters to change the current theme. |
696 | * |
697 | * @since 3.4.0 |
698 | */ |