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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 |
|---|---|
| 148 | list_core_update( $update ); |
| 149 | echo '</li>'; |
| 150 | } |
| 151 | echo '</ul>'; |
| 152 | echo '<p>' . __( 'While your site is being updated, it will be in maintenance mode. As soon as your updates are complete, your site will return to normal.' ) . '</p>'; |
| 153 | dismissed_updates(); |
| 154 | |
| 155 | list_plugin_updates(); |
| 156 | list_theme_updates(); |
| 157 | do_action('core_upgrade_preamble'); |
| 158 | echo '</div>'; |
| 159 | } |
| 160 | |
| 161 | function list_plugin_updates() { |
| 162 | global $wp_version; |
| 163 | |
| 164 | $cur_wp_version = preg_replace('/-.*$/', '', $wp_version); |
| 165 | |
| 166 | require_once(ABSPATH . 'wp-admin/includes/plugin-install.php'); |