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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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589 | * If a plugin is silently activated (such as during an update), |
590 | * this hook does not fire. |
591 | * |
592 | * @since 2.9.0 |
593 | * |
594 | * @param string $plugin Plugin path to main plugin file with plugin data. |
595 | * @param bool $network_wide Whether to enable the plugin for all sites in the network |
596 | * or just the current site. Multisite only. Default is false. |
597 | */ |
598 | do_action( 'activated_plugin', $plugin, $network_wide ); |
599 | } |
600 |
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601 | if ( ob_get_length() > 0 ) { |
602 | $output = ob_get_clean(); |
603 | return new WP_Error('unexpected_output', __('The plugin generated unexpected output.'), $output); |
604 | } |
605 | ob_end_clean(); |
606 | } |
607 |
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