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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 |
|---|---|
| 800 | * Filter the common arguments supplied when constructing a Customizer setting. |
| 801 | * |
| 802 | * @since 3.9.0 |
| 803 | * |
| 804 | * @see WP_Customize_Setting |
| 805 | * |
| 806 | * @param array $args Array of Customizer setting arguments. |
| 807 | * @param string $id Widget setting ID. |
| 808 | */ |
| 809 | return apply_filters( 'widget_customizer_setting_args', $args, $id ); |
| 810 | } |
| 811 | |
| 812 | /** |
| 813 | * Make sure that sidebar widget arrays only ever contain widget IDS. |
| 814 | * |
| 815 | * Used as the 'sanitize_callback' for each $sidebars_widgets setting. |
| 816 | * |
| 817 | * @since 3.9.0 |
| 818 | * @access public |