create and load csv

create and load csv

/**
 * load csv
 */
add_action("init", "download_csv");

function download_csv() {

	if (isset($_POST['download_csv'])) {

	    function outputCsv( $fileName, $assocDataArray ) {
	        ob_clean();
	        header( 'Pragma: public' );
	        header( 'Expires: 0' );
	        header( 'Cache-Control: must-revalidate, post-check=0, pre-check=0' );
	        header( 'Cache-Control: private', false );
	        header( 'Content-Type: text/csv' );
	        header( 'Content-Disposition: attachment;filename=' . $fileName );
	        if ( isset( $assocDataArray['0'] ) ) {
	            $fp = fopen( 'php://output', 'w' );
	            fputcsv( $fp, array_keys( $assocDataArray['0'] ) );
	            foreach ( $assocDataArray AS $values ) {
	                fputcsv( $fp, $values );
	            }
	            fclose( $fp );
	        }
	        ob_flush();
	    }


	    $data = array(
        array(
          'name' => 'some name',
          'email' => 'some email'
        )
      )
	    

	    $fileName = 'file.csv';
	    outputCsv( $fileName, $data );

	    exit; // This is really important - otherwise it shoves all of your page code into the download

	}

}