您可以使用WordPress settings api

下面是一个简单的示例，它将创建一个输入字段，供用户输入自定义徽标的路径。

// Add a menu for our option page
add_action(\'admin_menu\', \'prefix_myplugin_add_page\');
function prefix_myplugin_add_page() {
    add_options_page( \'My Theme Options\', \'Theme Name Options\', \'manage_options\', \'prefix_mytheme\', \'prefix_myplugin_option_page\' );
}

// Draw the option page
function prefix_mytheme_option_page() {
    ?>
    <div class="wrap">
        <h2>Really Simple Google Analytics</h2>
        <form action="options.php" method="post">
            <?php settings_fields( \'prefix_mytheme_options\' ); ?>
            <?php do_settings_sections( \'prefix_mytheme\' ); ?>
            <input name="Submit" type="submit" value="Save Changes" />
        </form>
    </div>
    <?php
}

// Register and define the settings
add_action( \'admin_init\', \'prefix_mytheme_admin_init\' );
function prefix_mytheme_admin_init(){
    register_setting(
        \'prefix_mytheme_options\',
        \'prefix_mytheme_options\'
    );
    add_settings_section(
        \'prefix_mytheme_main\',
        \'prefix_mytheme_options\',
        \'prefix_mytheme_section_text\',
        \'prefix_mytheme\'
    );
    add_settings_field(
        \'prefix_mytheme_text_string\',
        \'Enter text here\',
        \'prefix_mytheme_setting_input\',
        \'prefix_mytheme\',
        \'prefix_mytheme_main\'
    );
}

// Draw the section header
function prefix_mytheme_section_text() {
    echo \'<p>Enter path to custom logo.</p>\';
}

// Display and fill the form field
function prefix_mytheme_setting_input() {
    // get option \'text_string\' value from the database
    $options = get_option( \'prefix_mytheme_options\' );
    $text_string = $options[\'text_string\'];
    // echo the field
    echo "<input id=\'text_string\' name=\'prefix_mytheme_options[text_string]\' type=\'text\' value=\'$text_string\' />";
}

$options = get_option( \'prefix_mytheme_options\' );
if ( ! empty( $options[\'text_string\'] ) ) { 
    $logo = $options[\'text_string\'];
} else { $logo = \'http://path_to_default_logo\'; 
}