Check box form : select Files, Zip and Download via PHP - php

Question

I need to be able to do this.
From a form with checkbox the user select multiple images or singles images and then download it via PHP as a Zip file.
In that way it allows user to choose images he needs or not.
Here is my Code :
<form name="zips" action="download.php" method=POST>
<ul>
<li>
<input type="checkbox" class="chk" name="items[0]" id="img0" value="2015-Above-it-All"/>
<p>Above It All</p>
</li>
<li>
<input type="checkbox" class="chk" name="items[1]" id="img1" value="2015-Crocodile"/>
<p>Crocodile</p>
</li>
<li>
<input type="checkbox" class="chk" name="items[2]" id="img2" value="2015-Dandelion"/>
<p>Dandelion</p>
</li>
<li>
<input type="checkbox" class="chk" name="items[3]" id="img3" value="2015-Dearest-Sister"/>
<p>Dearest Sister</p>
</li>
<div style="text-align:center;" >
<input type="submit" id="submit" name="createzip" value="DOWNLOAD" class="subbutton-images" >
</div>
</form>
Then the PHP code:
<?php
// common vars
$file_path = $_SERVER['DOCUMENT_ROOT']."/img/press/";
if(count($_POST['file']) > 1){
//more than one file - zip together then download
$zipname = 'Forms-'.date(strtotime("now")).'.zip';
$zip = new ZipArchive();
if ($zip->open($zipname, ZIPARCHIVE::CREATE )!==TRUE) {
exit("cannot open <$zipname>\n");
}
foreach ($_POST['items'] as $key => $val) {
$files = $val . '.jpg';
$zip->addFile($file_path.$files,$files);
}
$zip->close();
//zip headers
if (headers_sent()) {
echo 'HTTP header already sent';
} else {
if (!is_file($zipname)) {
header($_SERVER['SERVER_PROTOCOL'].' 404 Not Found');
echo 'File not found';
} else if (!is_readable($zipname)) {
header($_SERVER['SERVER_PROTOCOL'].' 403 Forbidden');
echo 'File not readable';
} else {
header($_SERVER['SERVER_PROTOCOL'].' 200 OK');
header("Content-Type: application/zip");
header("Content-Transfer-Encoding: Binary");
header("Content-Length: ".filesize($zipname));
header("Content-Disposition: attachment; filename=\"".basename($zipname)."\"");
header("Pragma: no-cache");
header("Expires: 0");
readfile($zipname);
exit;
}
}
} elseif(count($_POST['items']) == 1) {
//only one file selected
foreach ($_POST['items'] as $key => $val) {
$singlename = $val . '.jpg';
}
$pdfname = $file_path. $singlename;
//header("Content-type:application/pdf");
header("Content-type: application/octet-stream");
header("Content-Disposition:inline;filename='".basename($pdfname)."'");
header('Content-Length: ' . filesize($pdfname));
header("Cache-control: private"); //use this to open files directly
readfile($pdfname);
} else {
echo 'no documents were selected. Please go back and select one or more documents';
}
?>
At the moment this script let me download a single image from the form but as soon as there is 2 images and that the script try to ZIP the files and then offer download its not working anymore.
Any ideas would be pretty nice from you guys as i'm a bit stucked with the scfript at the moment?

Answer 1

So below is the right PHP script which works for me :
:))
<?php
// common vars
$file_path = $_SERVER['DOCUMENT_ROOT']."/img/press/";
if(count($_POST['items']) > 1){
//more than one file - zip together then download
$zipname = 'Forms-'.date(strtotime("now")).'.zip';
$zip = new ZipArchive();
if ($zip->open($zipname, ZIPARCHIVE::CREATE )!==TRUE) {
exit("cannot open <$zipname>\n");
}
foreach ($_POST['items'] as $key => $val) {
$files = $val . '.jpg';
$zip->addFile($file_path.$files,$files);
}
$zip->close();
//zip headers
if (headers_sent()) {
echo 'HTTP header already sent';
} else {
if (!is_file($zipname)) {
header($_SERVER['SERVER_PROTOCOL'].' 404 Not Found');
echo 'File not found';
} else if (!is_readable($zipname)) {
header($_SERVER['SERVER_PROTOCOL'].' 403 Forbidden');
echo 'File not readable';
} else {
header('Content-type: application/zip');
header('Content-Disposition: attachment; filename='.$zipname);
header('Pragma: no-cache');
header('Expires: 0');
readfile($zipname);
flush();
if (readfile($zipname))
{
unlink($zipname);
}
//unlink($zipname);
exit;
}
}
} elseif(count($_POST['items']) == 1) {
//only one file selected
foreach ($_POST['items'] as $key => $val) {
$singlename = $val . '.jpg';
}
$pdfname = $file_path. $singlename;
//header("Content-type:application/pdf");
header("Content-type: application/octet-stream");
header("Content- Disposition:inline;filename='".basename($pdfname)."'");
header('Content-Length: ' . filesize($pdfname));
header("Cache-control: private"); //use this to open files directly
readfile($pdfname);
} else {
echo 'no documents were selected. Please go back and select one or more documents';
}
?>

Answer 2

***<?php
// common vars
$file_path = $_SERVER['DOCUMENT_ROOT']."/img/press/";
if(count($_POST['items']) > 1){
//more than one file - zip together then download
$zipname = 'Forms-'.date(strtotime("now")).'.zip';
$zip = new ZipArchive();
if ($zip->open($zipname, ZIPARCHIVE::CREATE )!==TRUE) {
exit("cannot open <$zipname>\n");
}
foreach ($_POST['items'] as $key => $val) {
$files = $val . '.jpg';
$zip->addFile($file_path.$files,$files);
}
$zip->close();
//zip headers
if (headers_sent()) {
echo 'HTTP header already sent';
} else {
if (!is_file($zipname)) {
header($_SERVER['SERVER_PROTOCOL'].' 404 Not Found');
echo 'File not found';
} else if (!is_readable($zipname)) {
header($_SERVER['SERVER_PROTOCOL'].' 403 Forbidden');
echo 'File not readable';
} else {
header('Content-type: application/zip');
header('Content-Disposition: attachment; filename='.$zipname);
header('Pragma: no-cache');
header('Expires: 0');
readfile($zipname);
flush();
if (readfile($zipname))
{
unlink($zipname);
}
//unlink($zipname);
exit;
}
}
} elseif(count($_POST['items']) == 1) {
//only one file selected
foreach ($_POST['items'] as $key => $val) {
$singlename = $val . '.jpg';
}
$pdfname = $file_path. $singlename;
//header("Content-type:application/pdf");
header("Content-type: application/octet-stream");
header("Content- Disposition:inline;filename='".basename($pdfname)."'");
header('Content-Length: ' . filesize($pdfname));
header("Cache-control: private"); //use this to open files directly
readfile($pdfname);
} else {
echo 'No Document were selected .Please Go back and Select Document again';
}
?>***