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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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818 |
|
819 | /** |
820 | * Filters the result of WP_Upgrader::install_package(). |
821 | * |
822 | * @since 5.7.0 |
823 | * |
824 | * @param array|WP_Error $result Result from WP_Upgrader::install_package(). |
825 | * @param array $hook_extra Extra arguments passed to hooked filters. |
826 | */ |
827 | $result = apply_filters( 'upgrader_install_package_result', $result, $options['hook_extra'] ); |
828 |
|
829 | $this->skin->set_result( $result ); |
830 | if ( is_wp_error( $result ) ) { |
831 | $this->skin->error( $result ); |
832 |
|
833 | if ( ! method_exists( $this->skin, 'hide_process_failed' ) || ! $this->skin->hide_process_failed( $result ) ) { |
834 | $this->skin->feedback( 'process_failed' ); |
835 | } |
836 | } else { |