PHP COM-based Excel operation class (PHP5)

I just wrote this out of boredom. If you like extensions, don’t forget to send me a copy. Haha, thank you.

ps: The test is not efficient, haha~~~

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PHP code:

<?php

/**
*COM-based Excel operation class (PHP5.x)
*PHPer:TTR
*Date:[2007-05-24]
*Ver:1.0.0
*Blog:[url]http://www.Gx3.cn[/url] [url]http://Gx3.cn[/url]
*QQ:252319874
*/
class Excel
{
static $instance=null;
private $excel=null;
private $workbook=null;
private $workbookadd=null;
private $worksheet=null;
private $worksheetadd=null;
private $sheetnum=1;
private $cells=array();
private $fields=array();
private $maxrows;
private $maxcols;
private $filename;

//Constructor
private function Excel()
{
$this->excel = new COM("Excel.Application") or die("Did Not Connect");
}

//Class entry
public static function getInstance()
{
if(null == self::$instance)
{
self::$instance = new Excel();
}
return self::$instance;
}

//Set file address
public function setFile($filename)
{
return $this->filename=$filename;
}

//Open file
public function Open()
{
$this->workbook=$this->excel->WorkBooks->Open($this->filename);
}

//Set Sheet
public function setSheet($num=1)
{
if($num>0)
{
$this->sheetnum=$num;
$this->worksheet=$this->excel->WorkSheets[$this->sheetnum];
$this->maxcols=$this->maxCols();
$this->maxrows=$this->maxRows();
$this->getCells();
}
}

//Get all values ​​from the table and write them into the array
private function getCells()
{
for($i=1;$i<$this->maxcols;$i++)
{
for($j=2;$j<$this->maxrows;$j++)
{
$this->cells[$this->worksheet->Cells(1,$i)->value][]=(string)$this->worksheet->Cells($j,$i)->value;
}
}
return $this->cells;
}

//Return table content array
public function getAllData()
{
return $this->cells;
}

//Return the specified cell content
public function Cell($row,$col)
{
return $this->worksheet->Cells($row,$col)->Value;
}

//Get the array of table field names
public function getFields()
{
for($i=1;$i<$this->maxcols;$i++)
{
$this->fields[]=$this->worksheet->Cells(1,$i)->value;
}
return $this->fields;
}

//Modify the content of the specified cell
public function editCell($row,$col,$value)
{
if($this->workbook==null || $this->worksheet==null)
{
echo "Error:Did Not Connect!";
}else{
$this->worksheet->Cells($row,$col)->Value=$value;
$this->workbook->Save();
}
}

//Modify a row of data
public function editOneRow($row,$arr)
{
if($this->workbook==null || $this->worksheet==null || $row>=2)
{
echo "Error:Did Not Connect!";
}else{
if(count($arr)==$this->maxcols-1)
{
$i=1;
foreach($arr as $val)
{
$this->worksheet->Cells($row,$i)->Value=$val;
$i++;
}
$this->workbook->Save();
}
}
}

//Get the total number of columns
private function maxCols()
{
$i=1;
while(true)
{
if(0==$this->worksheet->Cells(1,$i))
{
return $i;
break;
}
$i++;
}
}

//Get the total number of rows
private function maxRows()
{
$i=1;
while(true)
{
if(0==$this->worksheet->Cells($i,1))
{
return $i;
break;
}
$i++;
}
}

//Read the specified row data
public function getOneRow($row=2)
{
if($row>=2)
{
for($i=1;$i<$this->maxcols;$i++)
{
$arr[]=$this->worksheet->Cells($row,$i)->Value;
}
return $arr;
}
}

//Close the object
public function Close()
{
$this->excel->WorkBooks->Close();
$this->excel=null;
$this->workbook=null;
$this->worksheet=null;
self::$instance=null;
}
};

/*
$excel = new COM("Excel.Application");
$workbook = $excel->WorkBooks->Open('D:\Apache2\htdocs\wwwroot\MyExcel.xls');
$worksheet = $excel->WorkSheets(1);
echo $worksheet->Cells(2,6)->Value;
$excel->WorkBooks->Close();
*/

$excel=Excel::getInstance();
$excel->setFile("D:\Apache2\htdocs\wwwroot\MyExcel.xls");
$excel->Open();
$excel->setSheet();
for($i=1;$i<16;$i++ )
{
$arr[]=$i;
}
//$excel->editOneRow(2,$arr);
print_r($excel->getAllData());
$excel->Close();

?>