最近在做一个项目，有大量的execl表单导入导出，模板格式也比较简单，都是一维格式。但是抵不住量多，每次写导入导出的时候都要单独写。就想着怎么偷个懒。所以就写了一下几个工具方法。
字母对应的数字(顺序A对应1)
1 /** 2 * 字母对应的数字(顺序A对应1) 3 * @param $char 4 * @return int 5 */ 6 function charToNum($char) 7 { 8 $char = strtolower($char); 9 $array = array('a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'); 10 $len = strlen($char); 11 $sum = 0; 12 for ($i = 0; $i < $len; $i++) { 13 $index = array_search($char[$i], $array); 14 $sum += ($index + 1) * pow(26, $len - $i - 1); 15 } 16 return $sum; 17 }
数字转字母Excel列标
/** * 数字转字母Excel列标 * @param $index * @param int $start 是否小写 * @return int */ function numToChar($index, $start = 64) { !$start && $start = 64; $str = ''; $num = floor($index / 26); $mod = $index % 26; if (($mod > 0 && $num > 0) || $num > 1) { //$str = chr(($mod == 0 ? $num - 1 : $num) + $start); $str = numToChar(($mod == 0 ? $num - 1 : $num), $start); $index = $index - (26 * $num); $index || $index = 26; return $str . numToChar($index, $start); } else { return $str . chr($index % 27 + $start); } }
测试方法：
echo charToNum("A") . " " . numToChar(charToNum("A")); echo "<br/>"; echo charToNum("Z"). " " . numToChar(charToNum("Z"));; echo "<br/>"; echo charToNum("BA"). " " . numToChar(charToNum("BA"));; echo "<br/>"; echo charToNum("BZ"). " " . numToChar(charToNum("BZ"));; echo "<br/>"; echo charToNum("ZA"). " " . numToChar(charToNum("ZA"));; echo "<br/>"; echo charToNum("ZZ"). " " . numToChar(charToNum("ZZ"));; echo "<br/>"; echo charToNum("AAA"). " " . numToChar(charToNum("AAA"));; echo "<br/>"; echo charToNum("AAZ"). " " . numToChar(charToNum("AAZ"));; echo "<br/>"; echo charToNum("ZZA"). " " . numToChar(charToNum("ZZA"));; echo "<br/>"; echo charToNum("ZZZ"). " " . numToChar(charToNum("ZZZ"));;
结果：
1 A 26 Z 53 BA 78 BZ 677 ZA 702 ZZ 703 AAA 728 AAZ 18253 ZZA 18278 ZZZ
针对上面的两个方法，如果有更好的方法，欢迎提供意见。
将表转换成数组，其中map是表头字段和要转换成的数组key的映射关系。比如：
$map = [ "字段1"=>"key1", "字段2"=>"key2", ];
字段1和字段2是execl表头名称
/** * 表数据转化为数组 excel 低版本excel，不包括excel2007 * @param $file * @param array $map 字段映射关系 * @return array */ function excelToArray($file, $map = []) { /*创建对象,针对Excel2003*/ $objReader = \PHPExcel_IOFactory::createReader('Excel2007'); /*此属性不明，貌似设置为flase也可以*/ $objReader->setReadDataOnly(true); /*加载对象路径*/ $objPHPExcel = $objReader->load($file); /*获取工作表*/ $objWorksheet = $objPHPExcel->getActiveSheet(); //获得当前活动的工作表，即打开默认显示的那张表 //$objWorksheet=$objPHPExcel->getSheet(0); //也可以这样获取，读取第一个表,参数0 /*得到总行数*/ $highestRow = $objWorksheet->getHighestRow(); /*得到总列数*/ $highestColumn = $objWorksheet->getHighestColumn(); $highestColumnIndex = \PHPExcel_Cell::columnIndexFromString($highestColumn); /*取单元数据进数组*/ $keys = []; for ($col = 0; $col < $highestColumnIndex; ++$col) { $keys[] = $objWorksheet->getCellByColumnAndRow($col, 1)->getValue(); } for ($row = 2; $row <= $highestRow; ++$row) { for ($col = 0; $col < $highestColumnIndex; ++$col) { $key = $keys[$col]; if ($map && isset($map[$key])) { $key_map = $key = $map[$key]; } else { $key_map = $key; } while (isset($excelData[$row][$key])) { $count = intval(str_replace("{$key_map}_", "", $key)) + 1; $key = "{$key_map}_{$count}"; } $value = $objWorksheet->getCellByColumnAndRow($col, $row)->getValue(); $excelData[$row][$key] = $value ? "{$value}" : $value; } } return $excelData; }
导出execl，其中map是数组key和表头字段的映射关系，比如：
$map = [ "key1"=>"字段1", "key2"=>"字段2", ];
key1和key2 必须在$rows参数中存在
/** * 导出Execl * @param $title * @param $rows * @param $map * @return \PHPExcel */ function exportExcel($title, $rows, $map) { $objPHPExcel = new \PHPExcel(); //实例化phpExcel类 $objPHPExcel->setActiveSheetIndex(0);//设置第一个工作表为活动工作表 $objActSheet = $objPHPExcel->getActiveSheet();//获取活动工作表对象 //设置属性 - 标题 $objPHPExcel->getProperties()->setTitle($title); /** * 设置每个列的值一列为A 一行为1 则 第一行第一列为A1 * 以此类推,如果列不固定就用内置函数把数字转换成字母; $col是列 $row是行 $value是值. */ // 表头 $header = false; $row_index = 2; foreach ($rows as $row) { $col_index = 1; foreach ($row as $key => $value) { if (key_exists($key, $map)) { $col_letter = $this->getLetter($col_index); if (!$header || !$objActSheet->getCell("{$col_letter}1")->getValue()) { $objActSheet->setCellValue("{$col_letter}1", $map[$key]); } $objActSheet->setCellValue("{$col_letter}{$row_index}", $value === null ? "" : $value); $col_index++; } } $row_index++; $header = true; } $objPHPExcel->getActiveSheet()->getPageSetup()->setHorizontalCentered(true); $objPHPExcel->getActiveSheet()->getPageSetup()->setVerticalCentered(false); ob_end_clean(); ob_start(); header('Pragma:public'); header('Expires:0'); header('Cache-Control:must-revalidate,post-check=0,pre-check=0'); header('Content-Type:application/force-download'); header('Content-Type:application/vnd.ms-excel'); header('Content-Type:application/octet-stream'); header('Content-Type:application/download'); header('Content-Transfer-Encoding:binary'); $date = date("YmdHis"); header("Content-Disposition:attachment;filename=\"{$title}-{$date}.xls\""); $objWriter = \PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel5'); $objWriter->save('php://output'); ob_end_flush(); }