I have a database table to store my templates(.docx file). I am using openTbs to work on that templates.My need is that to take out the template and store it in thee server itself, and edit using openTbs.
My question is that how I can retrieve .docx file from database and store that in the server side.? (The storing may be temporary but i want to edit it using openTbs.)
Thanks in advance.......
It is bad practice to save binary data in the database, mostly when this data are intend to be processed by a file server, such as pictures or your DOCX.
Anyway, since OpenTBS 1.8.1, you can open an DOCX (or any Ms Office, LibreOffie or zip archive) from a PHP file handle.
You can use this feature to easily merge your template from the database :
// retrieve binary data of the file
$rs = mysql_query($dbc, "SELECT data FROM files WHERE id=$id");
$rec= mysql_fetch_array($rs, MYSQLI_ASSOC);
mysql_free($rs);
// create a temporary file
$temp = tmpfile();
fwrite($temp, $rec['file']);
unset($rec); // free PHP memory
// Open the file with OpenTBS
$TBS = new clsTinyButStrong;
$TBS->Plugin(TBS_INSTALL, OPENTBS_PLUGIN);
$TBS->LoadTemplate($temp);
...
Related
While I'm sending file ( type="file") to database (PHPmyAdmin), instead of saving with file name it saves as BLOB as shown in the following figure.
I found the the similar question Saving Files as blob in database ajax php pdo
here but didn't help me. My php code is as follows for sending file to the database.
$info = pathinfo($_FILES['file']['name']);
$ext = $info['extension']; // get the extension of the file
$newname = $get.".".$ext; //$newname='newfilename.'.$ext
$target ="folder/".$newname;
$doc= move_uploaded_file( $_FILES['file']['tmp_name'], $target);
$sql="INSERT INTO apply(mobile,doc,position)
VALUES (' $mobile','$newname',' $position')";
$query=mysqli_query($conn, $sql);
The file is sending to target folder (named folder) with the correct required name but Why I'm not getting the same name in the database. What's going wrong in my code?
Thanks in advance.
First of all, you should not tore files into the database directly because of critical performance issues.
Suggested way is to store files in file system, and store their path in database as TEXT or Varchar.
Now coming to your question:
While I'm sending file ( type="file") to database (PHPmyAdmin), instead of saving with file name it saves as BLOB as shown in the following figure.
Every file is composed of binaries but in different order and format. Storing it in database is not actually tricky. Database converts them into array of bytes/ stream of bytes and then stores these byte format data into the table.
When a fetch query is fired, it returns the exact byte stream in response. And at application level, these bytes are treated as files by their respective encoding techniques.
It's worth reading this post and subsequent link in the accepted answer.
Does anyone have an idea to create the dynamic form with uploaded excel file.
We need to facilitate users to add data in the pre-uploaded file. Can anyone help with this? We are doing in this way:
$objPHPExcelWriter = PHPExcel_IOFactory::createWriter($objPHPExcel,'HTML');
$objPHPExcelWriter->save('php://output');
But this above code only displays structure of excel on the web still we're unable to edit it.
you will need 2 pear packages
PHP-ExcelReader package
Spreadsheet_Excel_Writer package
What you need to do is read first the excel file use PHP-ExcelReader package It reads the binary format of XLS files directly and can return values and formats from any cell. http://code.google.com/p/php-excel-reader/
read the excel file
$data = new Spreadsheet_Excel_Reader("test.xls");
show the data of the file
$data->dump($row_numbers=false,$col_letters=false,$sheet=0,$table_class='excel')
Once you have stored the data in a variable save the data in another file this time you will use the The Spreadsheet_Excel_Writer package https://github.com/pear/Spreadsheet_Excel_Writer
<?php
require_once 'Spreadsheet/Excel/Writer.php';
$workbook = new Spreadsheet_Excel_Writer('test.xls');
$worksheet =& $workbook->addWorksheet('My first worksheet');
if (PEAR::isError($worksheet)) {
die($worksheet->getMessage());
}
$workbook->close();
?>
I have a file in xls format that I need to refresh (use 'refresh all' button in Excel) once a day and then retrieve the data from the pivot table and inset them into the database (MySQL). The file gets data from an external source (retrieve data from sharepoint 2007).
How is the easiest way to do this?
I'm thinking abaout PHP but do I not quite know how you go about it. From what I read PHPExcel does not support this operations.
When you try to use COM I get an error:
Fatal error: in D:\xampp\htdocs\sp\xls\index.php on line 11
And here is a php code:
<?php
// Start Excel
$excel = new COM("Excel.Application") or die ("Could not load Excel.Application");
// Make Excel visible.
$excel->Application->Visible = 1;
// Open workbook
$Workbook = $excel->Workbooks->Open('D:/xampp/htdocs/sp/xls/emails.xls', 'r+') ;
// Refresh all
$Workbook->RefreshAll();
// Save updated excel file out to disk somewhere
$Workbook->SaveAs('D:/xampp/htdocs/sp/xls/emails.xls');
// Close all instances of excel:
$Workbook->Close(false);
unset($Workbook);
$excel->Workbooks->Close();
$excel->Quit();
unset($excel);
?>
I'm using windows 7 and xampp with php 5.5.6
In php.ini I've added this line:
extension=php_com_dotnet.dll
Alternate: is it possible to run *.iqy file generated by sharepoint in php?
I found a workaround to my problem.
Instead, refresh the data by PHP pointed out in a query that collects data during the re-launch of the sheet. To this I added this VBA script save changes and close file.
At the end of the added task scheduler to run the sheet once per day.
The rest of downloading data from Excel using PHPExcel.
I can upload a file by using html file type and then I store that file information to mysql db. Here's my code=>
$upload = wp_upload_bits($_FILES["upload_file"]["name"], null, file_get_contents($_FILES["upload_file"]["tmp_name"]));
$document_name = $_FILES['upload_file']['name'];
$document_link = $upload['url'];
//and DB Operations in here..(I store to db filename,date,filelink etc.)
My problem is, I can't read the file content to store it to db. (I will do search on the file content, so I must read content of file.) Briefly how can i read the content of a file like pdf, doc or etc. from url such as http://...../uploads/exampleFile.docx?
$fileContent = file_get_contents($_FILES['upload_file']['tmp_name']);
Refer to the manual: $_FILES for an overview and this tutorial: Tizag PHP - File Upload for a walkthrough.
This PHP Manual section is a must-read as well: Handling File Uploads - moved from hakre's comment.
How to store a PDF file in a MySQL database using PHP?
Using BLOB (Binary Large Object) (longblob datatype)
$fileHandle = fopen($fileUpload, "r");
$fileContent = fread($fileHandle, $fileUpload_size);
$fileContent = addslashes($fileContent);
$dbQuery = "INSERT INTO myBlobs VALUES ";
$dbQuery .= "('$fileContent')";
The full tutorial available here
but it's strongly recommended to store files on the file system, and just add a reference in the DB (a field with the file path and name). Several reasons:
Faster
Easier to access (don't need any special application)
Faster backups
Less space
Use a type BLOB.
Here's an example in PHP
As others mentioned, you can use a BLOB type.
Alternatively, what you can also do is save the PDF in the file system and save the relative link to it into the database. This is the same principle that applies for saving things such as Thumbnails and other data types that may be unique to the user and are expensive in terms of resources.
If you are simply looking to store uploaded PDF files on your server, it's more common to copy the file to a given directory with a unique filename and simply store the full path of that file in your MySQL table.
If you are definitely looking to store the full binary data of the file in your MySQL database, then you will have to do a little more work to put the binary data into a BLOB field in MySQL and then to turn it back into a file when you pull it out again at a later date.
You will probably want to store not only the binary data for the file in your MySQL table, but also the filename, filetype and possibly even the size of the file (for listing on your webpage). You will probably want a table such as;
CREATE TABLE files (
id INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
filename VARCHAR(128) NOT NULL,
mimetype VARCHAR(64) NOT NULL,
data MEDIUMBLOB NOT NULL
);
In your PHP, you can then insert an uploaded file with something like the following;
$filePointer = fopen($_FILES['fileUpload']['tmp_name'], 'r');
$fileData = fread($filePointer, filesize($_FILES['fileUpload']['tmp_name']));
$fileData = addslashes($fileData);
$sql = "INSERT INTO files (filename, mimetype, data) VALUES( $fileName, $fileType, $fileData )";
Getting the file back out again will required a dedicated script that selects the appropriate file and then uses a series of 'header' commands to push that file back down to the browser with in a form that the browser knows how to handle it.
You can read a full tutorial about this here.