phpexcel匯入巨量資料記憶體溢位的解決方法有哪些

解決方案：

1、將單元格資料序列化後儲存在記憶體中

PHPExcel_CachedObjectStorageFactory::cache_in_memory_serialized;

2、將單元格序列化後再進行Gzip壓縮，然後儲存在記憶體中

PHPExcel_CachedObjectStorageFactory::cache_in_memory_gzip;

3、快取在臨時的磁碟檔案中，速度可能會慢一些

PHPExcel_CachedObjectStorageFactory::cache_to_discISAM;

4、儲存在php://temp

PHPExcel_CachedObjectStorageFactory::cache_to_phpTemp;

5、儲存在memcache中

PHPExcel_CachedObjectStorageFactory::cache_to_memcache；

$cacheMethod = PHPExcel_CachedObjectStorageFactory::cache_to_memcache;  
$cacheSettings = array( 'memcacheServer'  => 'localhost',  
     'memcachePort'    => 11211,  
     'cacheTime'       => 600  
);  
PHPExcel_Settings::setCacheStorageMethod($cacheMethod, $cacheSettings);

注意是加在new PHPExcel()前面，如下：

require_once APPPATH .'third_party/PHPExcel/PHPExcel.php';
        
$cacheMethod = PHPExcel_CachedObjectStorageFactory::cache_to_phpTemp;
$cacheSettings = array('memoryCacheSize'=>'16MB');
PHPExcel_Settings::setCacheStorageMethod($cacheMethod, $cacheSettings);
$objPHPExcel = new PHPExcel();

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