How to retrieve files from server folder using PHP and display/download it on a webpage using javascript?

Question

I have build a website where a user can upload user information like name, contact etc. and upload a resume in pdf format which am storing in a "uploads" folder and storing its full path in database column.

I want to build a simple website interface that will retrieve all files along with user info (am having path of all files in database as mentioned above) and display it on interface. How can I achieve it using PHP and javascript?

PS : Am using godaddy.

Here is how I uploaded file :

$path = "/home/easyemployment/public_html/uploaded/";
$tmp  = $_FILES['userfile']['tmp_name'];
$fileName = $_FILES['userfile']['name'];
move_uploaded_file($tmp, $path.$fileName);
$fullpath = $path.$fileName;
$query="INSERT INTO seeker VALUES ('$unm', '$company', '$email', '$city', $contact, '$fullpath')";

I just want some way of retrieving file and download it via javascipt. I googled it but cannot find what I need. — mustafa1993, Sep 06 '15 at 19:48
with javascript( client side script) its not possible to manipulate server. if it is possible it would be a security hole. but the server automatically throws files when we are on the link. — aimme, Sep 06 '15 at 19:52
Yes I know it. Its possible through PHP something like fileread(), which PHP will echo and used by javascipt. I cannot find proper resource/tutorial for this. — mustafa1993, Sep 06 '15 at 19:54
http://php.net/manual/en/function.readfile.php see this. should i elaborate it as an answer? — aimme, Sep 06 '15 at 19:57

score 2 · Answer 1 · edited May 23 '17 at 11:58

Its very broad so i will try to brief.

Here is the steps you could follow

As you said you have already created uploading and inserting components and it works. So i will leave that part and go directly to the next step. What you want to achieve is show the saved data along with the uploaded file.
So you need to first retrieve the saved data (user info and folder path to the cv) from database table. To do this use PDO or mysqli with php. User Select query to select matching content from database table. See Selecting table data with PDO statements
User HTML and CSS to design the user interface. Show the fetched data to the design through php. including the download link to the pdf file. i will show an example of php download file below. see How to make PDF file downloadable in HTML link?

Link to the pdf download could be like this

 <a href="download.php?file=pdffilename">Download CV</a>

download.php could be like this

header("Content-Type: application/octet-stream");

$file = $_GET["file"] .".pdf";
header("Content-Disposition: attachment; filename=" . urlencode($file));   
header("Content-Type: application/octet-stream");
header("Content-Type: application/download");
header("Content-Description: File Transfer");            
header("Content-Length: " . filesize($file));
flush(); // this doesn't really matter.
$fp = fopen($file, "r");
while (!feof($fp))
{
    echo fread($fp, 65536);
    flush(); // this is essential for large downloads
} 
fclose($fp);

I hope this help :)

Thanks for such concise answer. One doubt still remains, Where have we used path to file? Download.php received just the filename not path like /upload/cv/ — mustafa1993, Sep 07 '15 at 03:09
When the user passes filename or a specific id, to download.php, its a job of download.php to find that specific file.its the safe way, else you could provide user with direct path to file in the link and when the user clicks the link the whole link to be sent to download.php — aimme, Sep 07 '15 at 06:57

How to retrieve files from server folder using PHP and display/download it on a webpage using javascript?

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