php 导出图片为pdf

require_once ROOTPATH . 'tcpdf/vendor/autoload.php';$html='';if($html){
    mpdf($html);
}else{
    echo "下载失败，请选择资源";
    die();
}
function mPdf($html, $fileName = 'dome', $dest = "D")
{
    $mpdf = new \Mpdf\Mpdf();
    $mpdf->SetDisplayMode('fullpage');
    $mpdf->autoScriptToLang = true;
    $mpdf->autoLangToFont = true;

    $mpdf->WriteHTML($html);
    $mpdf->Output($fileName . ".pdf", $dest);
    // 输出pdf文件（必须写exit结束,否则会出现下载正常，预览全部乱码问题）
    exit();
}