PHPExcel Allowed memory size of 内存泄漏解决办法

 public function Destroy() {
     foreach($this->_cellCollection as $index => $dummy) {
         $this->_cellCollection[$index] = null;
     }
 }

并在 PHPExcel 类中增加方法：

 public function Destroy() {
     foreach($this->_workSheetCollection as $index => $dummy) {
         $this->_workSheetCollection[$index]->Destroy();
         $this->_workSheetCollection[$index] = null;
     }
 }

ini_set('memory_limit', '-1');         

或

ini_set('memory_limit','265M')

memory_limit = 12M

php_value memory_limit 12M