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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 |
---|---|
515 | * Fires when the WP_Customize_Setting::save() method is called. |
516 | * |
517 | * The dynamic portion of the hook name, `$id_base` refers to |
518 | * the base slug of the setting name. |
519 | * |
520 | * @since 3.4.0 |
521 | * |
522 | * @param WP_Customize_Setting $this WP_Customize_Setting instance. |
523 | */ |
524 | do_action( "customize_save_{$id_base}", $this ); |
525 |
|
526 | $this->update( $value ); |
527 | } |
528 |
|
529 | /** |
530 | * Fetch and sanitize the $_POST value for the setting. |
531 | * |
532 | * During a save request prior to save, post_value() provides the new value while value() does not. |
533 | * |