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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.
This hook occurs 2 times in this file.
| Line | Code |
|---|---|
| 26 | if ( apply_filters( 'enable_post_by_email_configuration', true ) ) { |
| 27 | get_current_screen()->add_help_tab( array( |
| 28 | 'id' => 'options-postemail', |
| 29 | 'title' => __( 'Post Via Email' ), |
| 30 | 'content' => '<p>' . __( 'Post via email settings allow you to send your WordPress install an email with the content of your post. You must set up a secret e-mail account with POP3 access to use this, and any mail received at this address will be posted, so it’s a good idea to keep this address very secret.' ) . '</p>', |
| 31 | ) ); |
| 32 | } |
| 33 | |
| 34 | /** This filter is documented in wp-admin/options-writing.php */ |
| 35 | if ( apply_filters( 'enable_update_services_configuration', true ) ) { |
| 36 | get_current_screen()->add_help_tab( array( |
| 37 | 'id' => 'options-services', |
| 38 | 'title' => __( 'Update Services' ), |
| 39 | 'content' => '<p>' . __( 'If desired, WordPress will automatically alert various services of your new posts.' ) . '</p>', |
| 40 | ) ); |
| 41 | } |
| 42 | |
| 43 | get_current_screen()->set_help_sidebar( |
| 44 | '<p><strong>' . __('For more information:') . '</strong></p>' . |
| Line | Code |
| 146 | |
| 147 | <?php |
| 148 | /** |
| 149 | * Filter whether to enable the Update Services section in the Writing settings screen. |
| 150 | * |
| 151 | * @since 3.0.0 |
| 152 | * |
| 153 | * @param bool $enable Whether to enable the Update Services settings area. Default true. |
| 154 | */ |
| 155 | if ( apply_filters( 'enable_update_services_configuration', true ) ) { |
| 156 | ?> |
| 157 | <h3 class="title"><?php _e('Update Services') ?></h3> |
| 158 | |
| 159 | <?php if ( 1 == get_option('blog_public') ) : ?> |
| 160 | |
| 161 | <p><label for="ping_sites"><?php _e('When you publish a new post, WordPress automatically notifies the following site update services. For more about this, see <a href="https://codex.wordpress.org/Update_Services">Update Services</a> on the Codex. Separate multiple service <abbr title="Universal Resource Locator">URL</abbr>s with line breaks.') ?></label></p> |
| 162 | |
| 163 | <textarea name="ping_sites" id="ping_sites" class="large-text code" rows="3"><?php echo esc_textarea( get_option('ping_sites') ); ?></textarea> |
| 164 | |