Question

我编写了用于创建主题选项的代码但默认值未显示在文本字段中此外，设置保存的消息也不会显示谢谢

    <?php

// Default options values
$xyz_options = array(
        'footer_copyright' => '&copy; ' . date('Y') . ' ' . get_bloginfo('name'),
        'facebook'=>'http://www.facebook.com/'
    );

if ( is_admin() ) : // Load only if we are viewing an admin page

    function xyz_register_settings() {
    // Register settings and call xyz initiation functions
        register_setting( 'xyz_theme_options', 'xyz_options', 'xyz_validate_options' );
    }

    add_action( 'admin_init', 'xyz_register_settings' );

    function xyz_theme_options() {
    // Add theme options page to the admin menu
        add_theme_page( 'Theme Options', 'Theme Options', 'edit_theme_options', 'theme_options', 'xyz_theme_options_page' );
    }

    add_action( 'admin_menu', 'xyz_theme_options' );

    // Function to generate options page
    function xyz_theme_options_page() {
        global $xyz_options;

        if ( ! isset( $_REQUEST['updated'] ) )
            $_REQUEST['updated'] = false; // This checks whether the form has just been submitted. ?>

        <div class="wrap">

            <?php screen_icon(); echo "<h2>" . get_current_theme() . __( ' Options' ) . "</h2>";
            // This shows the page's name and an icon if one has been provided ?>

            <?php if ( false !== $_REQUEST['updated'] ) : ?>
            <div class="updated fade"><p><strong><?php _e( 'Options saved' ); ?></strong></p></div>
            <?php endif; // If the form has just been submitted, this shows the notification ?>

            <form method="post" action="options.php">

                <?php $settings = get_option( 'xyz_options', $xyz_options ); ?>

                <?php settings_fields( 'xyz_theme_options' );
            /* This function outputs some hidden fields required by the form,
            including a nonce, a unique number used to ensure the form has been submitted from the admin page
            and not somewhere else, very important for security */ ?>

                <table class="form-table">

                    <tr valign="top">
                        <th scope="row">
                            <label for="facebook">Facebook url</label>
                        </th>
                        <td>
                            <input id="facebook" name="xyz_options[facebook]" type="text" value="<?php esc_attr_e($settings['facebook']); ?>" />
                        </td>
                    </tr>

                    <tr valign="top">
                        <th scope="row">
                            <label for="footer_copyright">Footer Text 1</label>
                        </th>
                        <td>
                            <input id="footer_copyright" name="xyz_options[footer_copyright]" type="text" value="<?php  esc_attr_e($settings['footer_copyright']); ?>" />
                        </td>
                    </tr>
                </table>
                <p class="submit">
                    <input type="submit" class="button-primary" value="Save Options" />
                </p>
            </form>

        </div>

    <?php
    }

    function xyz_validate_options( $input ) {
    global $xyz_options;

    $settings = get_option( 'xyz_options', $xyz_options );

    }

endif;  // EndIf is_admin()

我已经对上面的代码进行了修改。请帮忙谢谢

Answer 1

我测试了您的代码，正确显示的默认值 执行var_dump($_REQUEST);显示更新消息的问题，我们必须检查$_REQUEST['settings-updated']的简单。

您可以删除is_admin()检查，因为admin_init和admin_menu仅在管理员上运行。

验证函数应该是这样的，验证每个输入字段并返回一个带有清理值的干净数组：

function xyz_validate_options( $input ) {
    $new_input = array();
    if( isset( $input['facebook'] ) )
        $new_input['facebook'] = esc_url( $input['facebook'] );
    if( isset( $input['footer_copyright'] ) )
        $new_input['footer_copyright'] = esc_attr( $input['footer_copyright'] );
    return $new_input;
}

默认值未显示在输入字段wordpress中

1 个答案: