这些天在使用PHPExcel导出数据时,5000条数据竟然挂了。后来跟同事聊聊,有些明悟,PHPExcel做了很多处理,我在这里理解为渲染,就会暂用过多的空间,‘膨胀’的空间导致内存暂用过大,就挂了。其实只要我们只是简单的导出操作,没有必要使用PHPExcel。
就是将html的表格转换excel的表格;此种方法适应于设置各种单元格的显示,合并,只需设置html的table,设置css就能导出各式各样的excel模板。
实例如下:
导出一个带表头,表头带颜色,设置字体大小,居中,排版适中;
public function getVideoExcelExport(){ $dataResult = Array(); //需导出数据,根据自己情况查询获取 $headTitle = "视频记录"; $headtitle= "<tr style='height:50px;border-style:none;><th border="0" style='height:60px;270px;font-size:22px;' colspan='11' >{$headTitle}</th></tr>"; $titlename = "<tr> <th style='70px;' >ID</th> <th style='70px;' >标题</th> <th style='150px;'>内容</th> <th style='70px;'>付费模式</th> <th style='70px;'>播放次数</th> </tr>"; $filename = $headTitle.".xls"; $this->excelData($dataResult,$titlename,$headtitle,$filename); }
public function excelData($datas,$titlename,$title,$filename){ $str = "<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv=Content-Type content="text/html; charset=utf-8"> </head> <body>"; $str .="<table border=1><head>".$titlename."</head>"; $str .= $title;foreach ($datas as $key=> $rt ) { $str .= "<tr>"; foreach ( $rt as $k => $v ) { $str .= "<td>{$v}</td>"; } $str .= "</tr> "; } $str .= "</table></body></html>"; header( "Content-Type: application/vnd.ms-excel; name='excel'" ); header( "Content-type: application/octet-stream" ); header( "Content-Disposition: attachment; filename=".$filename ); header( "Cache-Control: must-revalidate, post-check=0, pre-check=0" ); header( "Pragma: no-cache" ); header( "Expires: 0" ); exit( $str ); }
援引:https://www.cnblogs.com/followyou/p/6143168.html