post_submit_meta_box ( $post, $args = array() )
post_submit_meta_box是一个WordPress函数,用于生成提交文章的元框。它接受两个参数:$post(文章对象)和$box(metabox数组)。
显示文章提交表单字段。
function post_submit_meta_box( $post, $args = array() ) { global $action; $post_id = (int) $post->ID; $post_type = $post->post_type; $post_type_object = get_post_type_object( $post_type ); $can_publish = current_user_can( $post_type_object->cap->publish_posts ); ?> <div class="submitbox" id="submitpost"> <div id="minor-publishing"> <?php // Hidden submit button early on so that the browser chooses the right button when form is submitted with Return key. ?> <div style="display:none;"> <?php submit_button( __( 'Save' ), '', 'save' ); ?> </div> <div id="minor-publishing-actions"> <div id="save-action"> <?php if ( ! in_array( $post->post_status, array( 'publish', 'future', 'pending' ), true ) ) { $private_style = ''; if ( 'private' === $post->post_status ) { $private_style = 'style="display:none"'; } ?> <input <?php echo $private_style; ?> type="submit" name="save" id="save-post" value="<?php esc_attr_e( 'Save Draft' ); ?>" class="button" /> <span class="spinner"></span> <?php } elseif ( 'pending' === $post->post_status && $can_publish ) { ?> <input type="submit" name="save" id="save-post" value="<?php esc_attr_e( 'Save as Pending' ); ?>" class="button" /> <span class="spinner"></span> <?php } ?> </div> <?php if ( is_post_type_viewable( $post_type_object ) ) : ?> <div id="preview-action"> <?php $preview_link = esc_url( get_preview_post_link( $post ) ); if ( 'publish' === $post->post_status ) { $preview_button_text = __( 'Preview Changes' ); } else { $preview_button_text = __( 'Preview' ); } $preview_button = sprintf( '%1$s<span class="screen-reader-text"> %2$s</span>', $preview_button_text, /* translators: Accessibility text. */ __( '(opens in a new tab)' ) ); ?> <a class="preview button" href="<?php echo $preview_link; ?>" target="wp-preview-<?php echo $post_id; ?>" id="post-preview"><?php echo $preview_button; ?></a> <input type="hidden" name="wp-preview" id="wp-preview" value="" /> </div> <?php endif; /** * Fires after the Save Draft (or Save as Pending) and Preview (or Preview Changes) buttons * in the Publish meta box. * * @since 4.4.0 * * @param WP_Post $post WP_Post object for the current post. */ do_action( 'post_submitbox_minor_actions', $post ); ?> <div class="clear"></div> </div> <div id="misc-publishing-actions"> <div class="misc-pub-section misc-pub-post-status"> <?php _e( 'Status:' ); ?> <span id="post-status-display"> <?php switch ( $post->post_status ) { case 'private': _e( 'Privately Published' ); break; case 'publish': _e( 'Published' ); break; case 'future': _e( 'Scheduled' ); break; case 'pending': _e( 'Pending Review' ); break; case 'draft': case 'auto-draft': _e( 'Draft' ); break; } ?> </span> <?php if ( 'publish' === $post->post_status || 'private' === $post->post_status || $can_publish ) { $private_style = ''; if ( 'private' === $post->post_status ) { $private_style = 'style="display:none"'; } ?> <a href="#post_status" <?php echo $private_style; ?> class="edit-post-status hide-if-no-js" role="button"><span aria-hidden="true"><?php _e( 'Edit' ); ?></span> <span class="screen-reader-text"><?php _e( 'Edit status' ); ?></span></a> <div id="post-status-select" class="hide-if-js"> <input type="hidden" name="hidden_post_status" id="hidden_post_status" value="<?php echo esc_attr( ( 'auto-draft' === $post->post_status ) ? 'draft' : $post->post_status ); ?>" /> <label for="post_status" class="screen-reader-text"><?php _e( 'Set status' ); ?></label> <select name="post_status" id="post_status"> <?php if ( 'publish' === $post->post_status ) : ?> <option<?php selected( $post->post_status, 'publish' ); ?> value='publish'><?php _e( 'Published' ); ?></option> <?php elseif ( 'private' === $post->post_status ) : ?> <option<?php selected( $post->post_status, 'private' ); ?> value='publish'><?php _e( 'Privately Published' ); ?></option> <?php elseif ( 'future' === $post->post_status ) : ?> <option<?php selected( $post->post_status, 'future' ); ?> value='future'><?php _e( 'Scheduled' ); ?></option> <?php endif; ?> <option<?php selected( $post->post_status, 'pending' ); ?> value='pending'><?php _e( 'Pending Review' ); ?></option> <?php if ( 'auto-draft' === $post->post_status ) : ?> <option<?php selected( $post->post_status, 'auto-draft' ); ?> value='draft'><?php _e( 'Draft' ); ?></option> <?php else : ?> <option<?php selected( $post->post_status, 'draft' ); ?> value='draft'><?php _e( 'Draft' ); ?></option> <?php endif; ?> </select> <a href="#post_status" class="save-post-status hide-if-no-js button"><?php _e( 'OK' ); ?></a> <a href="#post_status" class="cancel-post-status hide-if-no-js button-cancel"><?php _e( 'Cancel' ); ?></a> </div> <?php } ?> </div> <div class="misc-pub-section misc-pub-visibility" id="visibility"> <?php _e( 'Visibility:' ); ?> <span id="post-visibility-display"> <?php if ( 'private' === $post->post_status ) { $post->post_password = ''; $visibility = 'private'; $visibility_trans = __( 'Private' ); } elseif ( ! empty( $post->post_password ) ) { $visibility = 'password'; $visibility_trans = __( 'Password protected' ); } elseif ( 'post' === $post_type && is_sticky( $post_id ) ) { $visibility = 'public'; $visibility_trans = __( 'Public, Sticky' ); } else { $visibility = 'public'; $visibility_trans = __( 'Public' ); } echo esc_html( $visibility_trans ); ?> </span> <?php if ( $can_publish ) { ?> <a href="#visibility" class="edit-visibility hide-if-no-js" role="button"><span aria-hidden="true"><?php _e( 'Edit' ); ?></span> <span class="screen-reader-text"><?php _e( 'Edit visibility' ); ?></span></a> <div id="post-visibility-select" class="hide-if-js"> <input type="hidden" name="hidden_post_password" id="hidden-post-password" value="<?php echo esc_attr( $post->post_password ); ?>" /> <?php if ( 'post' === $post_type ) : ?> <input type="checkbox" style="display:none" name="hidden_post_sticky" id="hidden-post-sticky" value="sticky" <?php checked( is_sticky( $post_id ) ); ?> /> <?php endif; ?> <input type="hidden" name="hidden_post_visibility" id="hidden-post-visibility" value="<?php echo esc_attr( $visibility ); ?>" /> <input type="radio" name="visibility" id="visibility-radio-public" value="public" <?php checked( $visibility, 'public' ); ?> /> <label for="visibility-radio-public" class="selectit"><?php _e( 'Public' ); ?></label><br /> <?php if ( 'post' === $post_type && current_user_can( 'edit_others_posts' ) ) : ?> <span id="sticky-span"><input id="sticky" name="sticky" type="checkbox" value="sticky" <?php checked( is_sticky( $post_id ) ); ?> /> <label for="sticky" class="selectit"><?php _e( 'Stick this post to the front page' ); ?></label><br /></span> <?php endif; ?> <input type="radio" name="visibility" id="visibility-radio-password" value="password" <?php checked( $visibility, 'password' ); ?> /> <label for="visibility-radio-password" class="selectit"><?php _e( 'Password protected' ); ?></label><br /> <span id="password-span"><label for="post_password"><?php _e( 'Password:' ); ?></label> <input type="text" name="post_password" id="post_password" value="<?php echo esc_attr( $post->post_password ); ?>" maxlength="255" /><br /></span> <input type="radio" name="visibility" id="visibility-radio-private" value="private" <?php checked( $visibility, 'private' ); ?> /> <label for="visibility-radio-private" class="selectit"><?php _e( 'Private' ); ?></label><br /> <p> <a href="#visibility" class="save-post-visibility hide-if-no-js button"><?php _e( 'OK' ); ?></a> <a href="#visibility" class="cancel-post-visibility hide-if-no-js button-cancel"><?php _e( 'Cancel' ); ?></a> </p> </div> <?php } ?> </div> <?php /* translators: Publish box date string. 1: Date, 2: Time. See https://www.php.net/manual/datetime.format.php */ $date_string = __( '%1$s at %2$s' ); /* translators: Publish box date format, see https://www.php.net/manual/datetime.format.php */ $date_format = _x( 'M j, Y', 'publish box date format' ); /* translators: Publish box time format, see https://www.php.net/manual/datetime.format.php */ $time_format = _x( 'H:i', 'publish box time format' ); if ( 0 !== $post_id ) { if ( 'future' === $post->post_status ) { // Scheduled for publishing at a future date. /* translators: Post date information. %s: Date on which the post is currently scheduled to be published. */ $stamp = __( 'Scheduled for: %s' ); } elseif ( 'publish' === $post->post_status || 'private' === $post->post_status ) { // Already published. /* translators: Post date information. %s: Date on which the post was published. */ $stamp = __( 'Published on: %s' ); } elseif ( '0000-00-00 00:00:00' === $post->post_date_gmt ) { // Draft, 1 or more saves, no date specified. $stamp = __( 'Publish <b>immediately</b>' ); } elseif ( time() < strtotime( $post->post_date_gmt . ' +0000' ) ) { // Draft, 1 or more saves, future date specified. /* translators: Post date information. %s: Date on which the post is to be published. */ $stamp = __( 'Schedule for: %s' ); } else { // Draft, 1 or more saves, date specified. /* translators: Post date information. %s: Date on which the post is to be published. */ $stamp = __( 'Publish on: %s' ); } $date = sprintf( $date_string, date_i18n( $date_format, strtotime( $post->post_date ) ), date_i18n( $time_format, strtotime( $post->post_date ) ) ); } else { // Draft (no saves, and thus no date specified). $stamp = __( 'Publish <b>immediately</b>' ); $date = sprintf( $date_string, date_i18n( $date_format, strtotime( current_time( 'mysql' ) ) ), date_i18n( $time_format, strtotime( current_time( 'mysql' ) ) ) ); } if ( ! empty( $args['args']['revisions_count'] ) ) : ?> <div class="misc-pub-section misc-pub-revisions"> <?php /* translators: Post revisions heading. %s: The number of available revisions. */ printf( __( 'Revisions: %s' ), '<b>' . number_format_i18n( $args['args']['revisions_count'] ) . '</b>' ); ?> <a class="hide-if-no-js" href="<?php echo esc_url( get_edit_post_link( $args['args']['revision_id'] ) ); ?>"><span aria-hidden="true"><?php _ex( 'Browse', 'revisions' ); ?></span> <span class="screen-reader-text"><?php _e( 'Browse revisions' ); ?></span></a> </div> <?php endif; if ( $can_publish ) : // Contributors don't get to choose the date of publish. ?> <div class="misc-pub-section curtime misc-pub-curtime"> <span id="timestamp"> <?php printf( $stamp, '<b>' . $date . '</b>' ); ?> </span> <a href="#edit_timestamp" class="edit-timestamp hide-if-no-js" role="button"> <span aria-hidden="true"><?php _e( 'Edit' ); ?></span> <span class="screen-reader-text"><?php _e( 'Edit date and time' ); ?></span> </a> <fieldset id="timestampdiv" class="hide-if-js"> <legend class="screen-reader-text"><?php _e( 'Date and time' ); ?></legend> <?php touch_time( ( 'edit' === $action ), 1 ); ?> </fieldset> </div> <?php endif; if ( 'draft' === $post->post_status && get_post_meta( $post_id, '_customize_changeset_uuid', true ) ) : ?> <div class="notice notice-info notice-alt inline"> <p> <?php printf( /* translators: %s: URL to the Customizer. */ __( 'This draft comes from your <a href="%s">unpublished customization changes</a>. You can edit, but there is no need to publish now. It will be published automatically with those changes.' ), esc_url( add_query_arg( 'changeset_uuid', rawurlencode( get_post_meta( $post_id, '_customize_changeset_uuid', true ) ), admin_url( 'customize.php' ) ) ) ); ?> </p> </div> <?php endif; /** * Fires after the post time/date setting in the Publish meta box. * * @since 2.9.0 * @since 4.4.0 Added the `$post` parameter. * * @param WP_Post $post WP_Post object for the current post. */ do_action( 'post_submitbox_misc_actions', $post ); ?> </div> <div class="clear"></div> </div> <div id="major-publishing-actions"> <?php /** * Fires at the beginning of the publishing actions section of the Publish meta box. * * @since 2.7.0 * @since 4.9.0 Added the `$post` parameter. * * @param WP_Post|null $post WP_Post object for the current post on Edit Post screen, * null on Edit Link screen. */ do_action( 'post_submitbox_start', $post ); ?> <div id="delete-action"> <?php if ( current_user_can( 'delete_post', $post_id ) ) { if ( ! EMPTY_TRASH_DAYS ) { $delete_text = __( 'Delete permanently' ); } else { $delete_text = __( 'Move to Trash' ); } ?> <a class="submitdelete deletion" href="<?php echo get_delete_post_link( $post_id ); ?>"><?php echo $delete_text; ?></a> <?php } ?> </div> <div id="publishing-action"> <span class="spinner"></span> <?php if ( ! in_array( $post->post_status, array( 'publish', 'future', 'private' ), true ) || 0 === $post_id ) { if ( $can_publish ) : if ( ! empty( $post->post_date_gmt ) && time() < strtotime( $post->post_date_gmt . ' +0000' ) ) : ?> <input name="original_publish" type="hidden" id="original_publish" value="<?php echo esc_attr_x( 'Schedule', 'post action/button label' ); ?>" /> <?php submit_button( _x( 'Schedule', 'post action/button label' ), 'primary large', 'publish', false ); ?> <?php else : ?> <input name="original_publish" type="hidden" id="original_publish" value="<?php esc_attr_e( 'Publish' ); ?>" /> <?php submit_button( __( 'Publish' ), 'primary large', 'publish', false ); ?> <?php endif; else : ?> <input name="original_publish" type="hidden" id="original_publish" value="<?php esc_attr_e( 'Submit for Review' ); ?>" /> <?php submit_button( __( 'Submit for Review' ), 'primary large', 'publish', false ); ?> <?php endif; } else { ?> <input name="original_publish" type="hidden" id="original_publish" value="<?php esc_attr_e( 'Update' ); ?>" /> <?php submit_button( __( 'Update' ), 'primary large', 'save', false, array( 'id' => 'publish' ) ); ?> <?php } ?> </div> <div class="clear"></div> </div> </div> <?php }
要使用` get_users
`函数获取所有用户列表,可以按照以下步骤进行:
1. 使用` get_users
`函数调用获取用户列表:
$users = get_users();
2. 您可以按需使用参数来过滤结果。例如,您可以通过角色、用户ID、用户登录名等过滤用户列表。以下是一个根据用户角色为过滤条件的示例:
$users = get_users( array( 'role' => 'subscriber' // 将角色名称替换为您要过滤的角色 ) );
在上述示例中,将` role
`参数设置为所需的角色名称来过滤用户列表。
3. 您可以使用循环遍历获取的用户列表,并访问每个用户的属性。例如,以下示例将显示每个用户的用户名和电子邮件地址:
foreach( $users as $user ) { echo '用户名:' . $user->user_login . ', 电子邮件:' . $user->user_email . ; }
在上述示例中,通过` $user->user_login
`和` $user->user_email
`访问每个用户的用户名和电子邮件地址。
请注意,` get_users
`函数默认返回所有用户,并可以根据需要使用更多参数进行过滤。您可以参阅WordPress官方文档中的` get_users
`函数文档,了解更多可用参数和用法示例。
总结起来,使用` get_users
`函数获取所有用户列表的步骤是:
get_users
`函数获取用户列表。在WordPress中,可以使用WP_PLUGIN_DIR和WP_PLUGIN_URL常量来定义插件的目录路径和URL。
1. `WP_PLUGIN_DIR`:这是一个常量,用于定义插件的目录路径(文件系统路径)。您可以使用以下代码在插件文件中访问该常量:
$plugin_dir = WP_PLUGIN_DIR . '/your-plugin-folder/';
在上述代码中,将"your-plugin-folder"替换为您插件的实际文件夹名称。使用该常量,您可以获取插件文件的完整路径。
2. `WP_PLUGIN_URL`:这是一个常量,用于定义插件的URL(用于在网页上访问插件文件)。以下是一个使用该常量的示例:
$plugin_url = WP_PLUGIN_URL . '/your-plugin-folder/';
同样,请将"your-plugin-folder"替换为您插件的实际文件夹名称。使用该常量,您可以获取插件在网页上的完整URL。
请注意,`WP_PLUGIN_DIR`和`WP_PLUGIN_URL`常量在WordPress版本2.6之后引入。从WordPress 5.5版本开始,这两个常量被标记为过时(deprecated),因为WordPress更倾向于使用新的插件文件结构。如果您正在开发新插件,建议使用新的插件文件结构和相关函数。
在新的插件文件结构中,可以使用以下函数来获取插件的目录路径和URL:
- `plugin_dir_path()`:获取插件目录路径。
- `plugin_dir_url()`:获取插件URL。
这些函数会自动将插件的版本、多站点和SSL等考虑因素纳入计算。
总结起来,使用`WP_PLUGIN_DIR`和`WP_PLUGIN_URL`常量定义插件的目录和URL的方法是:
$plugin_dir = WP_PLUGIN_DIR . '/your-plugin-folder/'; $plugin_url = WP_PLUGIN_URL . '/your-plugin-folder/';
但请注意,这两个常量已被标记为过时,建议使用新的插件文件结构和相关函数来获取插件的路径和URL。
使用PHP在WordPress中添加自定义功能可以通过以下方式实现:
下面是一个实操示例。
要在WordPress中添加自定义功能,可以按照以下步骤使用PHP编写并添加自定义功能:
// 添加自定义功能示例 // 1. 创建自定义短代码 function custom_shortcode() { return '这是我的自定义短代码内容'; } add_shortcode('custom', 'custom_shortcode'); // 2. 自定义小工具 function custom_widget() { echo '这是我的自定义小工具内容'; } register_widget('custom_widget'); // 3. 自定义菜单 function custom_menu() { register_nav_menu('custom-menu', '自定义菜单'); } add_action('after_setup_theme', 'custom_menu'); // 4. 自定义页面模板 function custom_page_template() { /* Template Name: 自定义模板 */ // 自定义模板的内容和样式 }
请注意,修改主题文件可以在主题更新时丢失,因此建议在进行任何更改之前备份functions.php文件。此外,为避免不必要的错误和冲突,建议在添加自定义功能前先了解WordPress开发文档和最佳实践,以确保正确、安全地实现所需的自定义功能。
使用 do_action
函数可以触发一个钩子函数。do_action
函数的参数与要触发的钩子函数的参数相同。
例如,触发save_post钩子函数的代码如下:
do_action( 'save_post', $post_ID, $post );
这里,$post_ID
和 $post
是传递给钩子函数的参数。
使用 wp_get_current_user
获取当前登录用户的信息:
$current_user = wp_get_current_user(); // 获取当前用户的ID $user_id = $current_user->ID; // 获取当前用户的用户名 $user_login = $current_user->user_login; // 获取当前用户的邮箱 $user_email = $current_user->user_email; // 获取当前用户的显示名称 $display_name = $current_user->display_name;