laravel下的pdf扩展包laravel下比较知名的PDF扩展包有：laravel-snappy、laravel-DOMPDF。都是出自大神barryvdh之手。Laravel-snappy使用的是wkhtmltopdf，它建立在QTWebkit之上，是浏览器渲染。laravel-DOMPD根据流文件进行处理。（对比内存消耗）先安装Wkhtmltopdf，我们通过composer安装32位的：$composerrequireh4cc/wkhtmltopdf-i3860.12.x$composerrequireh4cc/wkhtmltoimage-i3860.12。x,64位:$composerrequireh4cc/wkhtmltopdf-amd640.12.x$composerrequireh4cc/wkhtmltoimage-amd640.12.x(uname-a查看系统位数的命令)cpvendor/h4cc/wkhtmltoimage-amd64/bin/wkhtmltoimage-amd64/usr/local/bin/cpvendor/h4cc/wkhtmltopdf-amd64/bin/wkhtmltopdf-amd64/usr/local/bin/并使其可执行：chmod+x/usr/local/bin/wkhtmltoimage-amd64chmod+x/usr/local/bin/wkhtmltopdf-amd64接下来安装snappy包composerrequirebarryvdh/laravel-snappy配置在config/app.phpBarryvdh\Snappy\ServiceProvider::class中的providers数组中添加ServiceProvider，或者在Facade'PDF'=>Barryvdh\Snappy\Facades\SnappyPdf::class,'SnappyImage'=>Barryvdh\Snappy\Facades\SnappyImage::class添加，生成配置文件：phpartisanvendor:publish--provider="Barryvdh\Snappy\ServiceProvider"注意：config文件夹下的snappy.php是它的配置文件，binary指向上面安装的wkhtml的相关路径。使用PDF1：下载$pdf=\PDF::loadView('welcome',$data);返回$pdf->download('welcome.pdf');二：渲染页面$html='
