Question

是否有任何laravel（也用于流明）的包可以帮助我解析（读取）巨大的xls文件？我提到巨大，因为像maatwebsite / excel，phpoffice / phpspreadsheet这样的包没有帮助。我需要xls而不是xlsx。请帮忙。

Answer 1

phpoffice的phpspreadsheet确实支持.xls文件，可以在其文档页面上的表的reading column中找到。

编辑1：

上述软件包支持以块的形式阅读：

This can be particularly useful for conserving memory, by allowing you to read and process a large workbook in "chunks": an example of this usage might be when transferring data from an Excel worksheet to a database.

$inputFileType = 'Xls';
$inputFileName = './sampleData/example2.xls';

/**  Define a Read Filter class implementing \PhpOffice\PhpSpreadsheet\Reader\IReadFilter  */
class ChunkReadFilter implements \PhpOffice\PhpSpreadsheet\Reader\IReadFilter
{
    private $startRow = 0;
    private $endRow   = 0;

    /**  Set the list of rows that we want to read  */
    public function setRows($startRow, $chunkSize) {
        $this->startRow = $startRow;
        $this->endRow   = $startRow + $chunkSize;
    }

    public function readCell($column, $row, $worksheetName = '') {
        //  Only read the heading row, and the configured rows
        if (($row == 1) || ($row >= $this->startRow && $row < $this->endRow)) {
            return true;
        }
        return false;
    }
}

/**  Create a new Reader of the type defined in $inputFileType  **/
$reader = \PhpOffice\PhpSpreadsheet\IOFactory::createReader($inputFileType);

/**  Define how many rows we want to read for each "chunk"  **/
$chunkSize = 2048;
/**  Create a new Instance of our Read Filter  **/
$chunkFilter = new ChunkReadFilter();

/**  Tell the Reader that we want to use the Read Filter  **/
$reader->setReadFilter($chunkFilter);

/**  Loop to read our worksheet in "chunk size" blocks  **/
for ($startRow = 2; $startRow <= 65536; $startRow += $chunkSize) {
    /**  Tell the Read Filter which rows we want this iteration  **/
    $chunkFilter->setRows($startRow,$chunkSize);
    /**  Load only the rows that match our filter  **/
    $spreadsheet = $reader->load($inputFileName);
    //    Do some processing here
}

See samples/Reader/12_Reading_a_workbook_in_chunks_using_a_configurable_read_filter_ for a working example of this code.

xls解析器用于非常大的文件的laravel

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