基于Spreadsheet的php生成excel

<?

class Xls{

/**

* The clasee of Spreadsheet_Excel_Writer's object

* @var Spreadsheet_Excel_Writer

*/

protected $xls;

/**

* The clasee of Spreadsheet_Excel_Writer_Worksheet's object

* @var Spreadsheet_Excel_Writer_Worksheet

*/

protected $sheet;

/**

* The clasee of Spreadsheet_Excel_Writer_Format's object

* @var Spreadsheet_Excel_Writer_Format

*/

protected $format;

/**

* The data will be used to create file

* the data must be an tow levels array,

* for example:

* array(array('title_a'=>'a','title_b'=>'b'),array('title_a'=>'a','title_b'=>'b') )

* @var array

*/

protected $data;

/**

* The file's rows

* @var int

*/

protected $rowCount;

/**

* The titles of the sheet

* @var array

*/

protected $title;

/**

* The construct method

* initialize the xls,sheet,

* format and rowCount.

*/

public function __construct()

{

$this->xls = &new Spreadsheet_Excel_Writer();

$this->xls->setVersion(8);

$this->sheet = & $this->xls->addWorksheet('sheet1');

$this->sheet->setInputEncoding('utf-8');

$formats = $this->getFormat();

$this->sheet->format = &$this->xls->addFormat($formats);

$this->rowCount = 0;

}

/**

* Initialize data.

* @param array $data

*/

public function setData(array $data)

{

$this->data=$data;

}

/**

* Send file to the browser.

*

* @param string $filename

* @param array $title

*

*/

public function sendFile($filename,$title = array())

{

if(empty ($filename))

{

$filename = data('Y-m-d');

}

$this->xls->send($filename);

if(!empty ($title))

{

$this->title = $title;

$this->writeTitle();

}

$this->writeRows();

$this->setColumns();

$this->setRows();

$this->xls->close();

}

/**

* Write rows to the file.

*/

public function writeRows()

{

$COUNTROW = count($this->data);

for($i =0 ;$i < $COUNTROW;$i++)

{

$this->writeRow($this->rowCount++,0,$this->data[$i],$this->format);

}

}

/**

* Wirte row to the file.

*

* @param int $row

* @param int $col

* @param array $data

*

*/

protected function writeRow($row,$col,$data)

{

if(empty ($this->title))

{

$this->sheet->writeRow($row,$col,$data,$this->format);

return;

}

foreach ($this->title as $key => $val)

{

$this->sheet->write($row, $col,$data[$key] ,$this->format);

$col++;

}

}

/**

* Return the array to create Spreadsheet_Excel_Writer_Format object.

*

* @param string $style

* @return array

*/

protected function getFormat($style = 'body')

{

$style = strtolower($style);

switch ($style) {

case 'body':

$formats =array('textwrap'=>1,'HAlign'=>'center','VAlign'=>'center');

break;

case 'title':

$formats =array('textwrap'=>1,'HAlign'=>'center','VAlign'=>'center','Bold'=>true);

break;

default:

$formats =array('textwrap'=>1,'HAlign'=>'center','VAlign'=>'center');

break;

}

return $formats;

}

/**

* Set all columns width with data's string lenth.

*/

protected function setColumns()

{

$width = 10;

$col = 0;

foreach ($this->title as $key =>$val)

{

$this->sheet->setColumn($col, $col, strlen($this->data[0][$key])>$width?strlen($this->data[0][$key]):$width);

$col++;

}

}

/**

* Set all rows hight.

*/

protected function setRows()

{

$hight = 20;

for($i=0;$i<$this->rowCount;$i++){

$this->sheet->setRow($i, $hight);

}

}

/**

* Write titles to file.

* @param array $title

*/

public function writeTitle(array $title=array())

{

if(empty ($title))

{

$title = $this->title;

}

$formats = $this->getFormat('title');

$this->sheet->writeRow($this->rowCount++,0,$title,$this->xls->addFormat($formats));

}

}