PHP 导出 和写入 Excel文件

<?php//  PHPExcel  需要下载  官网：http://www.codeplex.com/PHPExcelheader("Content-Type: text/html; charset=utf-8");require_once './PHPExcel.php';require_once './PHPExcel/IOFactory.php';require_once './PHPExcel/Reader/Excel5.php';/***	读取Excel表格*	@param $filePath   Excel文件路径*	@param $field		需要保存的字段		array('id','username','password')*	@param $column		读取Excel那列		array('A','B','C')*	@examlpe 		$filePath = '1.xls';	$field = array('id', 'username', 'password');	$column = array( 'A', 'B', 'C');	readExcel($filePath,$field,$column);*/function readExcel($filePath,$field,$column){	$objReader = PHPExcel_IOFactory::createReader('Excel5');//use excel2007 for 2007 format	$objPHPExcel = $objReader->load($filePath); //$filename可以是上传的文件，或者是指定的文件	$sheet = $objPHPExcel->getSheet(0); 	$highestRow = $sheet->getHighestRow(); // 取得总行数 	$highestColumn = $sheet->getHighestColumn(); // 取得总列数			for($j=1;$j<=$highestRow;$j++)	{		$colData = array();		$count = count($column);		for($i=0;$i<$count;$i++){						$colData[$field[$i]] = $objPHPExcel->getActiveSheet()->getCell($column[$i].$j)->getValue();//获取A列的值					}				$excelData[] = $colData;			}		return $excelData;}/***	导出数据为excel表格*	@param $data    一个二维数组,结构如同从数据库查出来的数组*	@param $title   excel的第一行标题,一个数组,如果为空则没有标题*	@param $filename 下载的文件名*	@examlpe 	exportexcel($arr,array('id','账户','密码','昵称'),'文件名!');*/function exportexcel($data=array(),$title=array(),$filename='report'){	header("Content-type:application/octet-stream");	header("Accept-Ranges:bytes");	header("Content-type:application/vnd.ms-excel");  	header("Content-Disposition:attachment;filename=".$filename.".xls");	header("Pragma: no-cache");	header("Expires: 0");	//导出xls 开始	if (!empty($title)){		foreach ($title as $k => $v) {			$title[$k]=iconv("UTF-8", "GB2312",$v);		}		$title= implode("/t", $title);		echo "$title/n";	}	if (!empty($data)){		foreach($data as $key=>$val){			foreach ($val as $ck => $cv) {				$data[$key][$ck]=iconv("UTF-8", "GB2312", $cv);			}			$data[$key]=implode("/t", $data[$key]);					}		echo implode("/n",$data);	}}?>