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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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236 | } |
237 |
|
238 | /** |
239 | * Fires once the Customizer theme preview has started. |
240 | * |
241 | * @since 3.4.0 |
242 | * |
243 | * @param WP_Customize_Manager $this WP_Customize_Manager instance. |
244 | */ |
245 | do_action( 'start_previewing_theme', $this ); |
246 | } |
247 |
|
248 | /** |
249 | * Stop previewing the selected theme. |
250 | * |
251 | * Removes filters to change the current theme. |
252 | * |
253 | * @since 3.4.0 |
254 | */ |