xwp/stream

<?php
/**
 * CSV Exporter
 *
 * @package WP_Stream
 */

namespace WP_Stream;

/**
 * Class - Exporter_CSV
 */
class Exporter_CSV extends Exporter {
    /**
     * Exporter name
     *
     * @var string
     */
    public $name = 'CSV';

    /**
     * Exporter slug
     *
     * @var string
     */
    public $slug = 'csv';

    /**
     * Outputs CSV data for download
     *
     * @param array $data Array of data to output.
     * @param array $columns Column names included in data set.
     * @return void
     */
    public function output_file( $data, $columns ) {
        if ( ! defined( 'WP_STREAM_TESTS' ) || ( defined( 'WP_STREAM_TESTS' ) && ! WP_STREAM_TESTS ) ) {
            header( 'Content-type: text/csv' );
            header( 'Content-Disposition: attachment; filename="stream.csv"' );
        }

        $output = join( ',', array_values( $columns ) ) . "\n";
        foreach ( $data as $row ) {
            $output .= join( ',', $row ) . "\n";
        }

        echo $output; // @codingStandardsIgnoreLine text-only output
        if ( ! defined( 'WP_STREAM_TESTS' ) || ( defined( 'WP_STREAM_TESTS' ) && ! WP_STREAM_TESTS ) ) {
            exit;
        }
    }
}