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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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274 |
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275 | /** |
276 | * Filters response of WP_Customize_Control::active(). |
277 | * |
278 | * @since 4.0.0 |
279 | * |
280 | * @param bool $active Whether the Customizer control is active. |
281 | * @param WP_Customize_Control $control WP_Customize_Control instance. |
282 | */ |
283 | $active = apply_filters( 'customize_control_active', $active, $control ); |
284 |
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285 | return $active; |
286 | } |
287 |
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288 | /** |
289 | * Default callback used when invoking WP_Customize_Control::active(). |
290 | * |
291 | * Subclasses can override this with their specific logic, or they may |
292 | * provide an 'active_callback' argument to the constructor. |