我想保存输入数据的值并检索它，我已经阅读了otto press.

我刚开始创建WordPress插件，但我不明白的是，一旦我单击保存更改按钮，页面会显示：

设置已保存

我的问题是输入的值去哪里，以及如何在同一页中检索该值。

这是我的密码

add_action(\'admin_menu\', \'add_page\');

if ( !function_exists( \'add_page\' ) ) {
    //function to add page under setting options in wordpress admin section
    function add_page() {
        add_options_page(\'New Setting Page\', \'New Setting\', \'manage_options\', \'plugin\', \'plugin_options_frontpage\');
    }   
}

function plugin_options_frontpage() {
    ?>
    <div class="wrap">
    <h2>New Setting Page title</h2>
    <form action="options.php" method="post">
    <?php settings_fields(\'plugin_options\'); ?>
    <?php do_settings_sections(\'plugin\'); ?>
    <table class="form-table"> 
      <tr valign="top">
        <td colspan="2">
            <input name="Submit" type="submit" class="button button-primary" value="<?php esc_attr_e(\'Save Changes\'); ?>" />
        </td>
      </tr>
    </table>
    </form>
    </div>
    <?php
}    

add_action(\'admin_init\', \'plugin_admin_init\');

function plugin_admin_init(){
    register_setting( \'plugin_options\', \'plugin_options\', \'plugin_options_validate\' );
    add_settings_section(\'plugin_main\', \'Main Settings\', \'plugin_section_text\', \'plugin\');
    add_settings_field(\'plugin_text_input1\', \'Input 1\', \'plugin_input1\', \'plugin\', \'plugin_main\');
    add_settings_field(\'plugin_text_input2\', \'Input 2\', \'plugin_input2\', \'plugin\', \'plugin_main\');
}

function plugin_section_text() {
    echo \'<p>New input setting to be saved.</p>\';
}

function plugin_input1() {
    $options = get_option(\'plugin_options\');
    echo "<input id=\'plugin_input1\' class=\'normal-text code\' name=\'plugin_options[text_string]\' size=\'30\' type=\'text\' value=\'{$options[\'text_string\']}\' />";
}

function plugin_input2() {
    $options = get_option(\'plugin_options\');
    echo "<input id=\'plugin_input2\' class=\'normal-text code\' name=\'plugin_options[text_string]\' size=\'30\' type=\'text\' value=\'{$options[\'text_string\']}\' />";
}

function plugin_options_validate($input) {
    $options = get_option(\'plugin_options\');
    $options[\'text_string\'] = trim($input[\'text_string\']);
    if(!preg_match(\'/^[a-z0-9]{32}$/i\', $options[\'text_string\'])) {
        $options[\'text_string\'] = \'\';
    }
    return $options;
}