我有ADDED 借助CMB2插件，使用oembed的视频元框。这是代码→

$cmb->add_field( array(
    \'name\' => (\'oEmbed\'),
    \'desc\' => \'Enter a youtube, twitter, or instagram URL. Supports services listed at <a href="http://codex.wordpress.org/Embeds">http://codex.wordpress.org/Embeds</a>.\',
    \'id\'   => $prefix . \'video_id\',
    \'type\' => \'oembed\',
    ) );

并将其打印在主题中。我是echoing 就像这样→

<?php
    $url = esc_url( get_post_meta( get_the_ID(), \'_the_video_id\', 1 ) );
    echo wp_oembed_get( $url );
?>

但我想要的是在上面的元框中(using oembed) 应该有一个checkbox.

我应该能够提出一个条件→

If (checkbox==true) {
      <?php
          $url = esc_url( get_post_meta( get_the_ID(), \'_the_video_id\', 1 ) );
          echo wp_oembed_get( $url );
    ?>
{

$cmb->add_field( array(
    \'name\'             => \'Select Video or Image\',
    \'desc\'             => \'Select an option\',
    \'id\'               => $prefix . \'image_or_video\',
    \'type\'             => \'select\',
    \'show_option_none\' => true,
    \'default\'          => \'custom\',
    \'options\'          => array(
        \'standard\' => __( \'Option One\', \'cmb2\' ),
        \'custom\'   => __( \'Option Two\', \'cmb2\' ),
        \'none\'     => __( \'Option Three\', \'cmb2\' ),
    ),
) );

请帮助我实现这一目标→

If Option chosen is Option 2 {
Execute some PHP code
}

我的问题我该怎么写→ 如果Option chosen 选项2是否在编程方面？

$image_or_video = get_post_meta($post_id, $prefix . \'image_or_video\', true);

// Option 2 is selected
if( \'custom\' === $image_or_video ){
 //Then execute some PHP code
}