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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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182 | list( $normalized_version ) = explode( '-', $wp_version ); |
183 | echo '<p>' . sprintf( __( '<a href="%s">Learn more about WordPress %s</a>.' ), esc_url( admin_url( 'about.php' ) ), $normalized_version ) . '</p>'; |
184 | } |
185 | dismissed_updates(); |
186 |
|
187 | if ( current_user_can( 'update_plugins' ) ) |
188 | list_plugin_updates(); |
189 | if ( current_user_can( 'update_themes' ) ) |
190 | list_theme_updates(); |
191 | do_action('core_upgrade_preamble'); |
192 | echo '</div>'; |
193 | } |
194 |
|
195 | function list_plugin_updates() { |
196 | global $wp_version; |
197 |
|
198 | $cur_wp_version = preg_replace('/-.*$/', '', $wp_version); |
199 |
|
200 | require_once(ABSPATH . 'wp-admin/includes/plugin-install.php'); |