在函数中。我添加的php文件

add_filter( \'allowed_block_types_all\', \'func_allowed_block_types\' );
function func_allowed_block_types( $allowed_blocks ) {
 
    return array(
        \'core/embed\'
    );
}

然后在我的插件中，我将这个JS添加到javascript文件中，以便只启用我想要的嵌入块（Twitter、youTube和Vimeo）

wp.domReady( function() {
    const allowedEmbedBlocks = [
        \'twitter\',\'youtube\', \'vimeo\'
    ];

    wp.blocks.getBlockType( \'core/embed\' ).variations.forEach( function( blockVariation ) {
        if (
            allowedEmbedBlocks.indexOf( blockVariation.name ) === -1
        ) {
            wp.blocks.unregisterBlockVariation( \'core/embed\', blockVariation.name );
        }
    } );
} );