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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 |
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30 |
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31 | if ( apply_filters( 'enable_post_by_email_configuration', true ) ) { |
32 | get_current_screen()->add_help_tab( array( |
33 | 'id' => 'options-postemail', |
34 | 'title' => __( 'Post Via Email' ), |
35 | '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>', |
36 | ) ); |
37 | } |
38 |
|
39 | if ( apply_filters( 'enable_update_services_configuration', true ) ) { |
40 | get_current_screen()->add_help_tab( array( |
41 | 'id' => 'options-services', |
42 | 'title' => __( 'Update Services' ), |
43 | 'content' => '<p>' . __( 'If desired, WordPress will automatically alert various services of your new posts.' ) . '</p>', |
44 | ) ); |
45 | } |
46 |
|
47 | get_current_screen()->set_help_sidebar( |
48 | '<p><strong>' . __('For more information:') . '</strong></p>' . |
Line | Code |
152 | <?php |
153 | wp_dropdown_categories(array('hide_empty' => 0, 'name' => 'default_email_category', 'orderby' => 'name', 'selected' => get_option('default_email_category'), 'hierarchical' => true)); |
154 | ?> |
155 | </td> |
156 | </tr> |
157 | <?php do_settings_fields('writing', 'post_via_email'); ?> |
158 | </table> |
159 | <?php } ?> |
160 |
|
161 | <?php if ( apply_filters( 'enable_update_services_configuration', true ) ) { ?> |
162 | <h3><?php _e('Update Services') ?></h3> |
163 |
|
164 | <?php if ( 1 == get_option('blog_public') ) : ?> |
165 |
|
166 | <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="http://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> |
167 |
|
168 | <textarea name="ping_sites" id="ping_sites" class="large-text code" rows="3"><?php echo esc_textarea( get_option('ping_sites') ); ?></textarea> |
169 |
|
170 | <?php else : ?> |