OptionTree Measurement Option Type

gistfile1.php

// OptionTree Measurement Option Type

// Example code when being used as a Metabox or
// Exported OptionTree file to be used in Theme Mode

array(
    'id'          => 'spyr_demo_measurement',
    'label'       => __( 'Measurement', 'text-domain' ),
    'desc'        => __( 'Your description', 'text-domain' ),
    'type'        => 'measurement',
    'section'     => 'your_section',
)

// Get the value saved on Theme Options Page
// Returns an array
$spyr_demo_measurement = ot_get_option( 'spyr_demo_measurement' );

// Get the value saved for a Page, Post or CPT ( Within the loop )
// Returns an array
$spyr_demo_measurement = get_post_meta( $post->ID, 'spyr_demo_measurement', true );

// Displaying the result side by side
echo $spyr_demo_measurement[0] . $spyr_demo_measurement[1];

// Adding a new measurement option to the list
add_filter( 'ot_measurement_unit_types', 'spyr_ot_measurement_unit_types', 10, 2 );
function spyr_ot_measurement_unit_types( $measurements, $field_id ) {
    if( 'demo_measurement' == $field_id ) {
        return array_merge( $measurements, array( 'rem' => 'rem' ) );
    } 
}

// Override list of measurements
add_filter( 'ot_measurement_unit_types', 'spyr_ot_measurement_override_unit_types', 10, 2 );
function spyr_ot_measurement_override_unit_types( $measurements, $field_id ) {
    if( 'demo_measurement' == $field_id ) {
        return array( 'rem' => 'rem' );
    } 
}