I am trying to upload an excel sheet with Codeigniter 3, My SQL, and PHP 8.2.
Kindly help me with the library and its usage on this task.
If you want to export your results, the easiest way is to use the csv method.
$filename="index_res.php";
header("Content-Description:File Transfer");
header("Content-Disposition:attachment;filename=$filename");
header("Content-Type:application/csv");
ob_clean();
$file=fopen("php://output","w");
//mysql result goes here
foreach($your_data as $data)
{
fputcsv($file,$data);
}
fclose($file);
exit;
Related
I am trying to open an existing excel file, modify some cells and save it. I am using Excel2007 for reader and writer.
The input file is about 1 MB large and it has few formulas, protected data and hidden rows and columns and worksheets which I do not modify.
I am able to load the data and read and write some values into it, which I check with various var_dumps in the code.
The problem is while saving it. It throws some fatal errors on timing outs and also if it writes the file the file size is bloated to 9.2 MB, which is okay if I can open it.
code snippet - nothing fancy.
$objReader = PHPExcel_IOFactory::createReader('Excel2007');
$objPHPExcel = $objReader->load($inputFile);
$objPHPExcel->setActiveSheetIndex(2);
$activeSheet = $objPHPExcel->getActiveSheet();
$currCell = $activeSheet->getCell("O3");
$cellValidation = $currCell->getDataValidation("O3");
$values = array();
if ($cellValidation->getShowDropDown() == true)
{
$values = $cellValidation->getFormula1();
$valArray = explode(",", $values);
$currCell->setValue($valArray[0]);
}
$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007');
$objWriter -> setPreCalculateFormulas(false);
$objWriter->save($outputFile);
I use MS Excel 2010 to open the resultant file but it just takes forever and has not opened it even once.
Please help me to troubleshoot this by giving me pointers as to where I should be looking.
Any help is greatly appreciated.
Instead of saving it to a file, save it to php://outputDocs:
$objWriter->save('php://output');
This will send it AS-IS to the browser.
You want to add some headersDocs first, like it's common with file downloads, so the browser knows which type that file is and how it should be named (the filename):
// We'll be outputting an excel file
header('Content-type: application/vnd.ms-excel');
// It will be called file.xls
header('Content-Disposition: attachment; filename="file.xls"');
// Write file to the browser
$objWriter->save('php://output');
First do the headers, then the save. For the excel headers see as well the following question: Setting mime type for excel document.
So the final code would have below lines -
// Save Excel 2007 file
#echo date('H:i:s') . " Write to Excel2007 format\n";
$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007');
ob_end_clean();
// We'll be outputting an excel file
header('Content-type: application/vnd.ms-excel');
// It will be called file.xls
header('Content-Disposition: attachment; filename="file.xlsx"');
$objWriter->save('php://output');
I think this line:
ob_end_clean();
Should solve your problem.
Thanks!
There's a whole lot of reasons for that "bloat" and it very much depends on the actual data in the worksheet, but MS Excel itself uses a lot of different techniques to keep the filesize small, whereas PHPExcel writes a simple version of the OfficeOpenXML format.
For example, MS Excel looks at the string content of all cells, and stores the individual strings in a string table. If a string is used by two or more cells, there will only be a single entry in the string table. However, there's a performance overhead in checking if a string already exists in the string table, so PHPExcel doesn't perform that check but will duplicate entries in the string table. This means that it will create a large file because of the duplication, but keeps the save speed as fast as possible.
Similarly, MS Excel looks at all formulae, and if the formula is similar to an existing formula (with only a row/column offset difference) it will store it as a shared formula rather than a cell formula, so the actual formula data is only stored once. Again, PHPExcel won't perform this check, because it is a big performance overhead in the save, so it stores every formula as a cell formula rather than a shared formula.
And no, I can't explain why the file doesn't load in MS Excel 2010, nor will I be able to explain it without being able to run the whole thing through debug
I want to create an application that when you import the CSV then it will export to .xlsx. But there are some conditins:
I need to change the column order and remove some of the columns when its exported
I need also to change the color and font(size,color)
And also create a multiple worksheets on single .xlsx file.
Which is better to use on this kind of application, can anybody help me and share some points which is better. I do the exploring on both but I need some guidance and some better solutions. Thank you.
// output headers so that the file is downloaded rather than displayed
header('Content-Type: text/csv; charset=utf-8');
header('Content-Disposition: attachment; filename=file.csv');
// create a file pointer connected to the output stream
$output = fopen('php://output', 'w');
// output the column headings
fputcsv($output, array('First Name', 'Last Name'));
You dot need to use a plugin or anything. PHP has the functionality within itself. What i wrote above is an example of defining the file and outputting the first row of the CSV.
Each use of fputcsv() outputs a new row.
So you can define the order of things by telling it in the array which value goes where in the row.
HI i am exporting some data from database in .xls format but when i try to save my file it alerts me that file type is not .xls format. I need to store it in excel 97-2003 Workbook. when i pretend for save as option, default file type is in as tab delimited.. how can i overcome it?? below is my code..
if ( $_POST["frmDownload"] == "Excel") {
header("Content-disposition: attachment; filename=employee_details.xls");
header("Content-Type: application/vnd.ms-excel");
header("Content-type: application/x-msexcel");
}
use phpExcel which is excellent for all excel manipulation.
Here is the list of examples.
use the method fromArray to write excel from array which is fetched from persistent data.
use the method toArray to form a php array from excel sheet.
The learning curve is very simple first try first example only from official site.
Then try the fromArray and toArray its very easy and also phpExcel have lots of functionality like gradient background for a cell, border size increasing, formula manipulation and new worksheet also easy to create.
Important: read documentation on when ever you get free time
The format is tab delimited... You are just 'naming' it excel in this way... Look at gvgvgvijayan's answer for the solution to your problem.
i am having a button on clicking this i want to generate a exl file having all data values which i have in a table comming from databse..please help me
Have a look at this PEAR package:
Spreadsheet_Excel_Writer
In case you have knowledge of windows technology, have a look at PHP's COM libary:
http://php.net/manual/de/book.com.php
Use a library such as PHPExcel, or one of the alternatives to PHPExcel listed in this thread
EDIT
The answer to this question demonstrates how to do what you're asking: reading data from a database and writing it to Excel
If you just want some simpel columns & rows without any special design
header("Content-type: application/octet-stream");
header("Content-Disposition: attachment; filename=\"export.csv\"");
$data.="col1, col2 ... from your database";
echo $data;
You can import csv into excel.
I know this isn't the right place to ask about this specific vague problem, but maybe someone knows this library well enough to enlighten me. Here is the thing:
I am writting an Excel5 over an existing Excel file with PHPExcel. I need to upload that Excel to the Zoom website, so it can provide me with a list of tracking numbers. However, for some reason the library they are using to read the uploaded Excel files cannot read the rows written by PHPExcel and the only solution I've found so far is to manually copy the contents of my dynamically generated Excel to another document using MS Excel 2007.
In other words, the Zoom website can read the rows written natively by Excel but not rows written by PHPExcel. My file has only one single sheet, and I can open it no problem with Excel 2007.
Even if I manually add some rows to the template and then add more rows with PHPExcel, Zoom will read the rows written manually by me, but not the rows written by PHPExcel.
This is how I'm doing it:
// Starting with the PHPExcel library
$this->load->library('PHPExcel');
$this->load->library('PHPExcel/IOFactory');
$template_file = 'zoom_tracking_template.xls';
$i = 3;
$objReader = IOFactory::createReader('Excel5');
$objPHPExcel = $objReader->load($template_file);
$objPHPExcel->setActiveSheetIndex(0);
// Fetching ML payments
foreach($payments as $row)
{
$objPHPExcel->getActiveSheet()->setCellValue('A'.$i, 'VANESSA NEISZER');
$objPHPExcel->getActiveSheet()->setCellValue('B'.$i, '02127616116');
$objPHPExcel->getActiveSheet()->setCellValue('C'.$i, '1ER PISO MINITIENDAS 199 BLVD SABANA GRANDE, CRUCE C / CALLE NEGRIN');
$objPHPExcel->getActiveSheet()->setCellValue('D'.$i, $row->mailing_city);
$objPHPExcel->getActiveSheet()->setCellValue('E'.$i, $row->mailing_name);
$objPHPExcel->getActiveSheet()->setCellValue('F'.$i, $row->mailing_name);
$objPHPExcel->getActiveSheet()->setCellValue('G'.$i, $row->mailing_personal_id);
$objPHPExcel->getActiveSheet()->setCellValue('H'.$i, $row->mailing_phone);
$objPHPExcel->getActiveSheet()->setCellValue('I'.$i, $row->mailing_address1.' '.$row->mailing_address2);
$objPHPExcel->getActiveSheet()->setCellValue('J'.$i, $row->nickname);
$objPHPExcel->getActiveSheet()->setCellValue('K'.$i, '1');
$objPHPExcel->getActiveSheet()->setCellValue('L'.$i, '0.3');
$objPHPExcel->getActiveSheet()->setCellValue('M'.$i, 'M');
$objPHPExcel->getActiveSheet()->setCellValue('N'.$i, 'PRODUCTO');
$objPHPExcel->getActiveSheet()->setCellValue('O'.$i, '0');
$i++;
}
$objPHPExcel->setActiveSheetIndex(0);
$objWriter = IOFactory::createWriter($objPHPExcel, 'Excel5');
// Sending headers to force the user to download the file
header('Content-Type: application/vnd.ms-excel');
header('Content-Disposition: attachment;filename="Envios'.date('dMy').'.xls"');
header('Cache-Control: max-age=0');
$objWriter->save('php://output');
I have no clue of what PHP library they are using to read Excel files and I am certain they wont tell me if I ask them. I know they use PHP, and their library only read Excel 2003 files, however, I don't know why they can't read my files but they can read other files written manually on MS Excel.
Any clues, ideas or suggestions I could try would be greatly appreciated.
And PHPExcel's main developer is looking at this issue (among others), somewhere in between trying to find a new day job and having a life. I'm not familiar with the zoom website, or the software that they use. PHPExcel BIFF8 files can be read by Excel, OOCalc and Gnumeric without error... but a couple of questions spring to mind.
What version of PHPExcel?
Does any of the data contain UTF-8 characters?
Are there any formulae in the template worksheet?
If so, what are they?