<?php
/**
 * Import CSV example for Pods
 *
 * @param string $file File location
 *
 * @return true|WP_Error Returns true on success, WP_Error if there was a problem
 */
function my_import_csv( $file ) {
	if ( ! is_readable( $file ) ) {
		return new WP_Error( '', sprintf( 'Can\'t read file: %', $file ) );
	}
	if ( ! function_exists( 'pods_migrate' ) ) {
		return new WP_Error( '', 'pods_migrate function not found' );
	}
	/**
	 * @var $migrate \PodsMigrate
	 */
	$migrate = pods_migrate();
	$contents = file_get_contents( $file );
	$parsed_data = $migrate->parse_sv( $contents, ',' );
	$pod = pods( 'your_pod' ); // @todo Update to your pod name
	if ( ! empty( $parsed_data['items'] ) ) {
		$total_found = count( $parsed_data['items'] );
		foreach ( $parsed_data['items'] as $row ) {
			// Do what you want with $row
			// $row has the column names from the first row of the CSV
			// Example: $row['column heading 1']
			// Example: $row['user_email']
			$data = array(
				'some_field' => $row['some_field'],
			);
			$new_item_id = $pod->add( $data );
		}
	} else {
		return new WP_Error( '', 'No items to import.' );
	}
	return true;
}