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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 |
---|---|
601 | * |
602 | * The dynamic portion of the hook name, `$this->ID`, refers to the setting ID. |
603 | * |
604 | * @since 4.6.0 |
605 | * |
606 | * @param WP_Error $validity Filtered from `true` to `WP_Error` when invalid. |
607 | * @param mixed $value Value of the setting. |
608 | * @param WP_Customize_Setting $this WP_Customize_Setting instance. |
609 | */ |
610 | $validity = apply_filters( "customize_validate_{$this->id}", $validity, $value, $this ); |
611 |
|
612 | if ( is_wp_error( $validity ) && ! $validity->has_errors() ) { |
613 | $validity = true; |
614 | } |
615 | return $validity; |
616 | } |
617 |
|
618 | /** |
619 | * Get the root value for a setting, especially for multidimensional ones. |