Reply To: Dynamically add options

• Thomas

• December 15, 2017 at 9:31 am

It doesn’t matter in which level of the repeaters the field is placed.

Try this code to get the image sizes as options for your radio field:

<?php
function acf_load_image_sizes_field_choices( $field ) {
	global $_wp_additional_image_sizes;

	$field['choices'] = array();

	foreach ( get_intermediate_image_sizes() as $size ) {
		if ( in_array( $size, array('thumbnail', 'medium', 'medium_large', 'large') ) ) {

			$width  = get_option( "{$size}_size_w" );
			$height = get_option( "{$size}_size_h" );
			$crop = (bool) get_option( "{$size}_crop" );

		} elseif ( isset( $_wp_additional_image_sizes[ $size ] ) ) {

			$width = $_wp_additional_image_sizes[ $size ]['width'];
			$height = $_wp_additional_image_sizes[ $size ]['height'];
			$crop = $_wp_additional_image_sizes[ $size ]['crop'];

		}
		
		$image_crop = "";
		if ( $crop == 1 ) {
			$image_crop = " - cropped";
		}

		// set the value for field values and labels as you like
		$value = $size;
		$label = $size . " ({$width}x{$height}{$image_crop})";

		$field['choices'][ $value ] = $label;
	}

	// add full size option
	$field['choices'][ 'full' ] = "Full size";

	return $field;
}
add_filter('acf/load_field/name=image_size', 'acf_load_image_sizes_field_choices');
?>

This filter works for the field named image-size.

I hope you get the idea how this works and you can adjust it to your needs.

Regards
Thomas