PHP Dynamically Generated Zip File by ZipArchive Can't be downloaded
1
I am trying to create a zip file and download that zip file on a button click in WordPress but when I try to download the file it always throws error -
Cannot modify header information - headers already sent by
Here is my code -
function downloadZipFile($file_array){
# create new zip object
$zip = new ZipArchive();
# create a temp file & open it
$tmp_file = tempnam('.', '');
$zip->open($tmp_file, ZipArchive::CREATE);
# loop through each file
foreach ($file_array as $file) {
//echo $file;
# download file
$download_file = file_get_contents($file);
#add it to the zip
$zip->addFromString(basename($file), $download_file);
}
# close zip
$zip->close();
# send the file to the browser as a download
echo ABSPATH.'downloadZip.php';
header('Content-disposition: attachment; filename="my file.zip"');
header('Content-type: application/zip');
readfile($tmp_file);
unlink($tmp_file);
}
In the above function I am passing a file array which is coming from box api. I can see all files are coming fine from box api endpoint.
php wordpress
asked Dec 31 '18 at 8:14
vivek kumarvivek kumar
209
add a comment |
1
I am trying to create a zip file and download that zip file on a button click in WordPress but when I try to download the file it always throws error -
Cannot modify header information - headers already sent by
Here is my code -
function downloadZipFile($file_array){
# create new zip object
$zip = new ZipArchive();
# create a temp file & open it
$tmp_file = tempnam('.', '');
$zip->open($tmp_file, ZipArchive::CREATE);
# loop through each file
foreach ($file_array as $file) {
//echo $file;
# download file
$download_file = file_get_contents($file);
#add it to the zip
$zip->addFromString(basename($file), $download_file);
}
# close zip
$zip->close();
# send the file to the browser as a download
echo ABSPATH.'downloadZip.php';
header('Content-disposition: attachment; filename="my file.zip"');
header('Content-type: application/zip');
readfile($tmp_file);
unlink($tmp_file);
}
In the above function I am passing a file array which is coming from box api. I can see all files are coming fine from box api endpoint.
php wordpress
asked Dec 31 '18 at 8:14
vivek kumarvivek kumar
209
did you check if the file you are trying to zip have the permission ?
– Mohammed Yassine CHABLI
Dec 31 '18 at 8:29
2
Possible duplicate of How to fix "Headers already sent" error in PHP
– Mohammed Yassine CHABLI
Dec 31 '18 at 8:47
@MohammedYassineCHABLI Yes files are having permission.
– vivek kumar
Dec 31 '18 at 9:20
I don't think this is duplicate of stackoverflow.com/questions/8028957/…. I fixed this error by using ob_start() function in wp-config.php but my zip file is always empty. I think think this is a problem with box api because when I try with other API URL it works. I also found this link community.box.com/t5/Platform-and-Development-Forum/….
– vivek kumar
Dec 31 '18 at 9:30
add a comment |
1
1
1
I am trying to create a zip file and download that zip file on a button click in WordPress but when I try to download the file it always throws error -
Cannot modify header information - headers already sent by
Here is my code -
function downloadZipFile($file_array){
# create new zip object
$zip = new ZipArchive();
# create a temp file & open it
$tmp_file = tempnam('.', '');
$zip->open($tmp_file, ZipArchive::CREATE);
# loop through each file
foreach ($file_array as $file) {
//echo $file;
# download file
$download_file = file_get_contents($file);
#add it to the zip
$zip->addFromString(basename($file), $download_file);
}
# close zip
$zip->close();
# send the file to the browser as a download
echo ABSPATH.'downloadZip.php';
header('Content-disposition: attachment; filename="my file.zip"');
header('Content-type: application/zip');
readfile($tmp_file);
unlink($tmp_file);
}
In the above function I am passing a file array which is coming from box api. I can see all files are coming fine from box api endpoint.
php wordpress
asked Dec 31 '18 at 8:14
vivek kumarvivek kumar
209
I am trying to create a zip file and download that zip file on a button click in WordPress but when I try to download the file it always throws error -
Cannot modify header information - headers already sent by
Here is my code -
function downloadZipFile($file_array){
# create new zip object
$zip = new ZipArchive();
# create a temp file & open it
$tmp_file = tempnam('.', '');
$zip->open($tmp_file, ZipArchive::CREATE);
# loop through each file
foreach ($file_array as $file) {
//echo $file;
# download file
$download_file = file_get_contents($file);
#add it to the zip
$zip->addFromString(basename($file), $download_file);
}
# close zip
$zip->close();
# send the file to the browser as a download
echo ABSPATH.'downloadZip.php';
header('Content-disposition: attachment; filename="my file.zip"');
header('Content-type: application/zip');
readfile($tmp_file);
unlink($tmp_file);
}
In the above function I am passing a file array which is coming from box api. I can see all files are coming fine from box api endpoint.
php wordpress
php wordpress
asked Dec 31 '18 at 8:14
vivek kumarvivek kumar
209
asked Dec 31 '18 at 8:14
vivek kumarvivek kumar
209
asked Dec 31 '18 at 8:14
vivek kumarvivek kumar
209
asked Dec 31 '18 at 8:14
vivek kumarvivek kumar
209
asked Dec 31 '18 at 8:14
vivek kumarvivek kumar
209
209
did you check if the file you are trying to zip have the permission ?
– Mohammed Yassine CHABLI
Dec 31 '18 at 8:29
2
Possible duplicate of How to fix "Headers already sent" error in PHP
– Mohammed Yassine CHABLI
Dec 31 '18 at 8:47
@MohammedYassineCHABLI Yes files are having permission.
– vivek kumar
Dec 31 '18 at 9:20
I don't think this is duplicate of stackoverflow.com/questions/8028957/…. I fixed this error by using ob_start() function in wp-config.php but my zip file is always empty. I think think this is a problem with box api because when I try with other API URL it works. I also found this link community.box.com/t5/Platform-and-Development-Forum/….
– vivek kumar
Dec 31 '18 at 9:30
add a comment |
did you check if the file you are trying to zip have the permission ?
– Mohammed Yassine CHABLI
Dec 31 '18 at 8:29
2
Possible duplicate of How to fix "Headers already sent" error in PHP
– Mohammed Yassine CHABLI
Dec 31 '18 at 8:47
@MohammedYassineCHABLI Yes files are having permission.
– vivek kumar
Dec 31 '18 at 9:20
I don't think this is duplicate of stackoverflow.com/questions/8028957/…. I fixed this error by using ob_start() function in wp-config.php but my zip file is always empty. I think think this is a problem with box api because when I try with other API URL it works. I also found this link community.box.com/t5/Platform-and-Development-Forum/….
– vivek kumar
Dec 31 '18 at 9:30
did you check if the file you are trying to zip have the permission ?
– Mohammed Yassine CHABLI
Dec 31 '18 at 8:29
did you check if the file you are trying to zip have the permission ?
– Mohammed Yassine CHABLI
Dec 31 '18 at 8:29
2
2
Possible duplicate of How to fix "Headers already sent" error in PHP
– Mohammed Yassine CHABLI
Dec 31 '18 at 8:47
Possible duplicate of How to fix "Headers already sent" error in PHP
– Mohammed Yassine CHABLI
Dec 31 '18 at 8:47
@MohammedYassineCHABLI Yes files are having permission.
– vivek kumar
Dec 31 '18 at 9:20
@MohammedYassineCHABLI Yes files are having permission.
– vivek kumar
Dec 31 '18 at 9:20
I don't think this is duplicate of stackoverflow.com/questions/8028957/…. I fixed this error by using ob_start() function in wp-config.php but my zip file is always empty. I think think this is a problem with box api because when I try with other API URL it works. I also found this link community.box.com/t5/Platform-and-Development-Forum/….
– vivek kumar
Dec 31 '18 at 9:30
I don't think this is duplicate of stackoverflow.com/questions/8028957/…. I fixed this error by using ob_start() function in wp-config.php but my zip file is always empty. I think think this is a problem with box api because when I try with other API URL it works. I also found this link community.box.com/t5/Platform-and-Development-Forum/….
– vivek kumar
Dec 31 '18 at 9:30
add a comment |
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did you check if the file you are trying to zip have the permission ?
– Mohammed Yassine CHABLI
Dec 31 '18 at 8:29
2
Possible duplicate of How to fix "Headers already sent" error in PHP
– Mohammed Yassine CHABLI
Dec 31 '18 at 8:47
@MohammedYassineCHABLI Yes files are having permission.
– vivek kumar
Dec 31 '18 at 9:20
I don't think this is duplicate of stackoverflow.com/questions/8028957/…. I fixed this error by using ob_start() function in wp-config.php but my zip file is always empty. I think think this is a problem with box api because when I try with other API URL it works. I also found this link community.box.com/t5/Platform-and-Development-Forum/….
– vivek kumar
Dec 31 '18 at 9:30