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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 |
---|---|
605 | * |
606 | * The dynamic portion of the hook name, `$this->ID`, refers to the setting ID. |
607 | * |
608 | * @since 4.6.0 |
609 | * |
610 | * @param WP_Error $validity Filtered from `true` to `WP_Error` when invalid. |
611 | * @param mixed $value Value of the setting. |
612 | * @param WP_Customize_Setting $this WP_Customize_Setting instance. |
613 | */ |
614 | $validity = apply_filters( "customize_validate_{$this->id}", $validity, $value, $this ); |
615 |
|
616 | if ( is_wp_error( $validity ) && empty( $validity->errors ) ) { |
617 | $validity = true; |
618 | } |
619 | return $validity; |
620 | } |
621 |
|
622 | /** |
623 | * Get the root value for a setting, especially for multidimensional ones. |