PHPExcel reader -- help required

how do we get the sheet name ( bcoz in one excel there are 7 sheets )?

To get the current active sheet:

$sheetName = $objPHPExcel->getActiveSheet()->getTitle();

time changed into some integer value, that shoud be same as in excel sheet

Look at PHPExcel_Shared_Date::ExcelToPHP($excelDate) or PHPExcel_Shared_Date::ExcelToPHPObject($excelDate) to convert the date/time values to a PHP timestamp or DateTime object

Have a look at the $objPHPExcel->getActiveSheet()->toArray() method rather than looping through all the rwos and columns yourself. If you want to use toArray with the formatted argument though, don't use $objReader->setReadDataOnly(true); otherwise PHPExcel can't distinguish between a number and a date/time. The latest SVN code has added a rangeToArray() method to the worksheet object, which allows you to read a row (or block of cells) at a time, e.g. $objPHPExcel->getActiveSheet()->rangeToArray('A1:A4')

The rest of your questions are basically PHP array manipulation

EDIT

PS. Instead of just telling us that the manual is really really very bad... tell us how we can improve it.

EDIT 2

Using the latest SVN code to take advantage of the rangeToArray() method:

$objWorksheet = $objPHPExcel->setActiveSheetIndex(0);$highestRow = $objWorksheet->getHighestRow();$highestColumn = $objWorksheet->getHighestColumn();$headingsArray = $objWorksheet->rangeToArray('A1:'.$highestColumn.'1',null, true, true, true);$headingsArray = $headingsArray[1];$r = -1;$namedDataArray = array();for ($row = 2; $row <= $highestRow; ++$row) {    $dataRow = $objWorksheet->rangeToArray('A'.$row.':'.$highestColumn.$row,null, true, true, true);    if ((isset($dataRow[$row]['A'])) && ($dataRow[$row]['A'] > '')) {        ++$r;        foreach($headingsArray as $columnKey => $columnHeading) {            $namedDataArray[$r][$columnHeading] = $dataRow[$row][$columnKey];        }    }}echo '<pre>';var_dump($namedDataArray);echo '</pre><hr />';