/**

* 导入Excels

*

* @param string $file

* @param array $sheet_names

*

* @return array|bool

* @throws \PHPExcel_Exception

* @throws \PHPExcel_Reader_Exception

*/

public static function importExcel($file, $sheet_names)

{

foreach ($sheet_names as $sheet_name) {

$rowSize = 200;

$startRow = 1;//从第二行开始读取

$endRow = $rowSize;

$data = [];

while (true) {

$excel_orders = self::readFromExcel($file, $startRow, $endRow, $sheet_name);

if (empty($excel_orders)) {

break;

}

$data = array_merge($data, $excel_orders);

$startRow = $endRow + 1;

$endRow = $endRow + $rowSize;

}

$result[$sheet_name] = $data;

}

return $result;

}

/**

* 读取excel转换成数组

*

* @param string $excelFile 文件路径

* @param int $startRow 开始读取的行数

* @param int $endRow 结束读取的行数

* @param string $sheet_name sheet名称

*

* @return array

* @throws \PHPExcel_Exception

* @throws \PHPExcel_Reader_Exception

*/

private static function readFromExcel($excelFile, $startRow = 1, $endRow = 100, $sheet_name)

{

$excelType = PHPExcel_IOFactory::identify($excelFile);

$excelReader = PHPExcel_IOFactory::createReader($excelType);

if (strtoupper($excelType) == 'CSV') {

$excelReader->setInputEncoding('GBK');

}

if ($startRow && $endRow) {

$excelFilter = new PHPExcelReadFilter();

$excelFilter->startRow = $startRow;

$excelFilter->endRow = $endRow;

$excelReader->setReadFilter($excelFilter);

}

$php_excel = $excelReader->load($excelFile);

$activeSheet = $php_excel->getSheetByName($sheet_name);

if ( !$activeSheet) {

return [];

}

$highestColumn = $activeSheet->getHighestColumn(); //最后列数所对应的字母，例如第1行就是A

$highestColumnIndex = PHPExcel_Cell::columnIndexFromString($highestColumn); //总列数

$data = [];

for ($row = $startRow; $row <= $endRow; $row++) {

for ($col = 0; $col < $highestColumnIndex; $col++) {

$data[$row][] = (string)$activeSheet->getCellByColumnAndRow($col, $row)->getFormattedValue();

}

if (implode($data[$row], '') == '') {

unset($data[$row]);

}

}

return $data;

}

使用：

$data = CommonHelper::importExcel($file, ['sheet', 'sheet1', 'sheet2', 'sheet3']);

**在读取的时候 cpu瞬间98 99%，excel文件并不是很大 2M左右 更小也是这样，这是本机测试的，在服务器上也是一样的效果，4核 16G的配置；

有什么其他写法么？**