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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.
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261 |
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262 | /** |
263 | * Filters whether to enable user auto-complete for non-super admins in Multisite. |
264 | * |
265 | * @since 3.4.0 |
266 | * |
267 | * @param bool $enable Whether to enable auto-complete for non-super admins. Default false. |
268 | */ |
269 | if ( is_multisite() && current_user_can( 'promote_users' ) && ! wp_is_large_network( 'users' ) |
270 | && ( current_user_can( 'manage_network_users' ) || apply_filters( 'autocomplete_users_for_site_admins', false ) ) |
271 | ) { |
272 | wp_enqueue_script( 'user-suggest' ); |
273 | } |
274 |
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275 | require_once( ABSPATH . 'wp-admin/admin-header.php' ); |
276 |
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277 | if ( isset( $_GET['update'] ) ) { |
278 | $messages = array(); |
279 | if ( is_multisite() ) { |