PHPExcel 检查工作表是否存在

Question

I am using phpExcel, and I can't find anything to check if a sheet exists. What I would like to accomplish is something like this:

if(!$excel->sheetExists(1)){
    $excel->createSheet(1);
    $sheet = $excel->setSheet(1);
}
// Do some stuff with the sheet

So. My question: How can I check if a sheet exists?

Edit

Would this work?

try{
    $sheet = $this->excel->setActiveSheetIndex(1);
}catch(Exception $e){
    $excel->createSheet(1);
    $sheet = $excel->setActiveSheetIndex(1);
}

Answer 1

If you simply want to know whether a sheetexists at index 1, then

$sheetCount = $excel->getSheetCount();

will return a count of the worksheets. As sheets are indexed incrementally from 0, then a sheet at index 1 will only exist if the count is 2 or more.

If you want to know whether a named sheet exists, then

$sheetNames = $excel->getSheetNames();

will return an array of sheet names (indexed by their index position), and you can then test using in_array();

The

$excel->getSheet()

method will throw an exception if the requested sheet (by index) doesn't exist, so wrap it in a try/catch block would be another approach

$excel->getSheetByName()

returns a NULL value if the named worksheet doesn't exist

Answer 2

您可以使用sheetNameExists($pSheetName)方法按名称检查工作表是否存在。

Answer 3

getSheet($sheetNumber)是检查工作表是否存在的方式。

Answer 4

Yes your code will also work:

try {
        $objWorksheet =  $objPHPExcel->setActiveSheetIndex(1); 
}
catch (Exception $e) {
    echo 'Sheet is not exists!';
}

Answer 5

$sheet=$excel->getSheet(1);
// or you can get sheet by name $sheet=$excel->getSheetByName("Sheet1");
if(!empty($sheet)&&is_object($sheet)){
      //sheet already exist
}else{
      //sheet does not exist. Write your code here!
}

Answer 6

"TO KNOW THE PRESENT ACTIVE SHEET NUMBER(INDEX)" $this->activeSheet->getActiveSheetIndex()

NOTE: $loadExcel=PHPExcel_IOFactory::load("excelSheetName.xlsx"); $this->activeSheet=$loadExcel;