buid filename with concatenation

[Tinus]

Hi

I need to click on a button that will download a file.
The problem is how I will indicate a filename.

Files are stored in folders tcp20100220,tcp 20100220.
It depends on a date given by the user.The file in the folder will be named in the same way but will be a pdf file.(tcp201002 20.pdf)

1 .A form is given to the user where he/she enters a date.Then a file is generated in the specific folder.
2. A new html page opens with a download button.

My problem:
Button is html.

The date is received into php as follow

$indate=$_POST["inputdate"];
echo " indate is".$indate;  
//ghet input date
if (isset($_POST["inputdate"])){ 
$MyToday=date("Ymd");
$MyToday=strtotime($indate);}
else{
$MyToday=$today;}
echo"...";

now the download button cannot be created in php so I need to use Html.

Something like the following should be done

<html> 
<title>HTML with PHP</title>
<body>

<input type="button" value="Download Result" onClick="window.location.href='http://111.111.11.117/besa/SASoutput/tcp"<?php date('Ymd',$MyToday) ?>>/tcp"<?php date('Ymd',$MyToday) ?>>.pdf">
</html>

Please give me some direction as you can see I have no idea how to go ahead.

[johny10151981]

if you had search before posting you would get result both on google and in this forum
follow the link

[Tinus]

Thank you.
So if I have a file in C:\aptana\xampp-win32-1.7.3\xampp\htd ocs\besa\RD_Env _ICV5\Report\Mt M_Bond_20100826
named TRI_FP20100826. pdf

Why is the following giving me the message "file missing in the server"

$thedate="20100826"
if
 (file_exists("C:/aptana/xampp-win32-1.7.3/xampp/htdocs/besa/RD_Env_ICV5/Report/MtM_Bond_".$thedate."/"."TRI_FP".$thedate."pdf")==false) 
 { 
  echo "<message>file missing in the server</message>";  
  exit; 
 }

I know this might be another stupid question but I have a deadline and this neads to be finished in time.

[johny10151981]

file_exists("C:/aptana/xampp-win32-1.7.3/xampp/htdocs/besa/RD_Env_ICV5/Report/MtM_Bond_".$thedate."/"."TRI_FP".$thedate."pdf"

this has a bug. the bug is there is "." before pdf

last 4 bytes of the file name is ".pdf" but you are checking for "6pdf"