I am looking for a way to send a link to an image such as
and converting the base64 binary to a string. It doesn't matter if it's via a function in freemarker or via a Webservice. How can I do this?
Have the solution, just written a php-script:
<?php
header('Content-type: application/json; charset=utf-8');
$link = $_GET['link'];
$imagedata = file_get_contents($link);
// alternatively specify an URL, if PHP settings allow
$base64 = base64_encode($imagedata);
print($base64);
?>
Related
I have the following code to display an image - without going into details about why I am not just using the image name.
<?php
$data = base64_encode(file_get_contents('example.png'));
$info = getimagesize('example.png');
$image = sprintf('data:%s;base64,%s', $info['mime'], $data);
?>
<img src="<?php echo $image; ?>" download='final-image.png' />
It works as expected displaying the image.
However when someone right-clicks the image, in FireFox it wants to save it as (scriptname).png and Chrome wants to save it as download.png.
I can't use header() as headers are already being sent.
Is there any way to force a filename that works across browsers?
Thank you in advance
i want to convert HTML into DOCX so i used \PhpOffice\PhpWord library in laravel
The code for the same is as below
$html = "<html><body><h1>HELLO DEMO</h1></body></html>";
$phpWord = new \PhpOffice\PhpWord\PhpWord();
$section = $phpWord->addSection();
\PhpOffice\PhpWord\Shared\Html::addHtml($section, $html, false, false);
$phpWord->save(public_path('temp/demo.docx'), 'Word2007');
instead of saving the docx, it is showing the HTML on the webpage.
I want to save into a folder
is there anything missed by me, i used this in laravel so require_once "vendor/autoload.php"; might not be required?
You need the
require_once 'vendor/autoload.php';
also add and change
$path = public_path('temp/demo.docx');
$phpWord->save($path, 'Word2007');
im making currently making my thesis about a record management of our university secretary.. in which all papers inside the office will be scanned and uploaded in the system.. i am using codeigniter..one of the feature in my system is to view the pdf file in other window of the browser. but my problem is, when i click the title. only blank page will be displayed in the other tab.. can you help me solve this one?? here is my code
controller:
function viewMinutesFile(){
if(isset($_GET['id'])){
$id = $_GET['id'];
$file = $this->minutes_model->getFile($id);
$fp= fopen($file->path, "r");
header("Cache-Control: maxage=1");
header("Pragma: public");
header("Content-type: application/pdf");
header("Content-Disposition: inline; filename=".$file->filename."");
header("Content-Description: PHP Generated Data");
header("Content-Transfer-Encoding: binary");
header('Content-Length:' .filesize($file->path));
ob_clean();
flush();
while (!feof($fp)){
$buff = fread($fp,1024);
print $buff;
}
exit;
}
}
code to open the file: this is my syntax to be clicked by the user so that pdf file will be open in the new tab
File
index.php/admin/viewMinutesFile?
id=" target="_tab">
try this one with a static url. no need any extra words for that.
Show My Pdf
New Update
if its work for you then fetch pdf name from database and put the name in the view like
Show My Pdf
now in the controller
$this->load->helper('download');
if($this->uri->segment(3))
{
$data = file_get_contents('./file_path/'.$this->uri->segment(3));
}
$name = $this->uri->segment(3);
force_download($name, $data);
well, you could add a link to file with target="_blank", like
<a href="<?php echo base_url(). 'your_controller/viewMinutesFile'; ?>" target="_blank">
View Pdf
</a>
and in controller function:
function viewMinutesFile(){
....
$file = $this->minutes_model->getFile($id);
$this->output
->set_content_type('application/pdf')
->set_output(file_get_contents($your_pdf_file));
}
you can try this on your view :
Filename
and on your controller, you can try this, because this is works for me :
function viewfile(){
$fname = $this->uri->segment(3);
$tofile= realpath("uploaddir/".$fname);
header('Content-Type: application/pdf');
readfile($tofile);
}
hope this might help you...
Just create a link to a blank page and use this code in your controller:
public function myPdfPage(){
$url = base_url('assets/your.pdf');
$html = '<iframe src="'.$url.'" style="border:none; width: 100%; height: 100%"></iframe>';
echo $html;
}
Enjoy!
There is no any problem with your code you can open easily on next tab, like other pages only difference you have to change header description and it is make sure on your browser pdf reader add-ons are available, otherwise it will give you option to download.
You may just follow this.
<?php echo form_open_multipart('your_controller/your_function','target="_blank"') ;?>
//other input fields
<?php form_close();?>
When client request for a file, I use this code to send it:
public static Result download(String file) {
File file = getRealFile(file);
return Ok(file);
}
But I found the browser will not download it, but display its content instead. The response header:
Content-Type text/plain
Transfer-Encoding chunked
What's the correct way to send a file?
Update
Per Razvi's answer, I found an answer seems good for this question: https://stackoverflow.com/a/1074925/342235
But do we really have to set so many headers?
header("Cache-Control: public");
header("Content-Description: File Transfer");
header("Content-Disposition: attachment; filename=$filepath");
header("Content-Type: mime/type");
header("Content-Transfer-Encoding: binary");
// UPDATE: Add the below line to show file size during download.
header('Content-Length: ' . filesize($filepath));
You need to set the Content-Disposition header. I believe the value of the header should be attachment. See Manipulating the response doc for this.
For play 2.0 the following works without explicitly setting the header:
ok(new FileInputStream(file))
Im trying to generate pdf using dompdf, how can I open the pdf in a new tab in a browser? Like, I Click A link for the PDF and it should open in a new tab, not save it automatically. I want to give the user a choice to save the file after seeing it first. how do i do that?
whenever i use $pdf->output at the end of the file, it does not change a thing, the file is still downloaded automatically.
please help. thanks.
Whether a PDF is downloaded or viewed in the browser depends on a couple of factors. One is your browser settings, but we have no control there. The second is how dompdf present the PDF to the browser. You can tell dompdf to offer the PDF for direct viewing using $dompdf->stream('my.pdf',array('Attachment'=>0));.
As far as opening in a new tab. That depends on how you are generating the PDF. But the simplest way it to provide a link with a target attribute.
I have a same problem into my site (http://www.pdfwebcreator.com)
My solution is:
$myfile = fopen($strFileName, "r") or die("Unable to open file!");
$fileSize = filesize($strFileName);
header("HTTP/1.1 200 OK");
header("Pragma: public");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: private", false);
header("Content-type: application/pdf");
header("Content-Disposition: attachment; filename=\"temporaryPdf.pdf\"");
header("Content-Transfer-Encoding: binary");
header("Content-Length: " . $fileSize);
echo fread($myfile, $fileSize);
}
I don't know if you got, but if you use false in this line:
$dompdf-> stream("pasta/doc/relatorio.pdf", array("Attachment" => false));
You can see the pdf in the browser.
Well that you can do with the ->stream(); at the end of the chain.
Example:
//Routes (web.php in case laravel version >= 5.4)
Route::get('/pdf', 'PdfController#pdfStream')->name('pdfStream');
//PdfController.php
public function pdfStream(Request $request) {
$data["info"] = "I is usefull!";
$pdf = PDF::loadView('whateveryourviewname', $data);
return $pdf->stream('whateveryourviewname.pdf');
}
//yourViewPage.blade.php
<a href="{{route("pdfStream")}}" target="_blank" > click me to pdf </a>
Here more information
Am still experimenting, but something like this works fine as well
$pdf->loadView('file/path', compact('values'));
return $pdf->stream();
With this you can add dynamic values to your pdf file page within the browser.