PHPExcel导出主要代码记录

/*
 * 获取下一个列名
 * 注意，此方法最多支持到两位
 * */
function getNextColum($colum){
    if(empty($colum))return 'A';
    $key = ord(substr($colum,strlen($colum)-1,1));
    if($key<90){
        $str = strlen($colum)>1?substr($colum,0,1).chr($key+1):chr($key+1);
    }else{
        $str = strlen($colum)>1?chr(ord(substr($colum,0,1))+1).'A':'AA';
    }
    return $str;
}

function exportExcel(){
    $keyValue = array(
        'field_01' => '第一列标题',
        'field_02' => '第二列标题',
        'field_03' => '第三列标题',
        'field_04' => '第四列标题',
    );
    $list = array(
        array('field_01' => 'value_01', 'field_02' => 'value_02', 'field_03' => 'value_03', 'field_04' => 'value_04'),
        array('field_01' => 'value_01', 'field_02' => 'value_02', 'field_03' => 'value_03', 'field_04' => 'value_04'),
        array('field_01' => 'value_01', 'field_02' => 'value_02', 'field_03' => 'value_03', 'field_04' => 'value_04'),
        array('field_01' => 'value_01', 'field_02' => 'value_02', 'field_03' => 'value_03', 'field_04' => 'value_04')
    );
    $this->import('PHPExcel');
    $PHPExcel = new PHPExcel();
    $fileName = iconv("utf-8", "GBK", 'excel文件名_导出时间(' . date('YmdHi', time()) . ').xlsx');
    $colum = "A";//设置表头
    foreach ($keyValue as $keys => $value) {
        $PHPExcel->setActiveSheetIndex(0)->setCellValue($colum . '1', $value);
        $PHPExcel->getActiveSheet()->getColumnDimension($colum)->setWidth(30);
        $colum = getNextColum($colum);
    }
    $row = 2;
    foreach ($list as $value) {
        $colum = "A";//设置表头
        foreach ($keyValue as $v => $fieldContent) {
            $PHPExcel->setActiveSheetIndex(0)->setCellValueExplicit($colum . $row, empty($value[$v]) ? '--' : $value[$v], PHPExcel_Cell_DataType::TYPE_STRING);
            $PHPExcel->getActiveSheet()->getColumnDimension($colum)->setWidth(30);
            $colum = getNextColum($colum);
        }
        $row++;
    }
    header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
    header("Content-Disposition: attachment; filename="$fileName"");
    header('Cache-Control: max-age=0');
    $objWriter = PHPExcel_IOFactory::createWriter($PHPExcel, 'Excel2007');
    $objWriter->save('php://output');
}