Vtiful\Kernel\Format::bold

Vtiful\Kernel\Format bold

&reftitle.description; public `Vtiful\Kernel\Format::bold` `resource` `handle`

`Vtiful\Kernel\Format` bold format

&reftitle.parameters;

`handle`

- xlsx file handle

&reftitle.returnvalues;

Resource

&reftitle.examples;

### Bold style example

    <?php
    $config = [
        'path' => './tests'
    ];

    $excel = new \Vtiful\Kernel\Excel($config);
    $excel->fileName('tutorial01.xlsx');

    $format = new \Vtiful\Kernel\Format($excel->getHandle());
    $boldStyle = $format->bold()->toResource();

    $excel->header(['name', 'age'])
        ->data([['viest', 21]])
        ->setColumn('A:A', 200, $boldStyle)
        ->output();
    ?>