Meta box io oembed returns list not array

You could also code it like this :

$btsvideoembeds = rwmb_get_value( 'oembed_1', array( 'type' => 'oembed' ) );

foreach ( (array) $btsvideoembeds as $btsvideoembed ) {

printf('%s', wp_oembed_get( $btsvideoembed ) );

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