Duplicator doesn’t work on site running PHP 8.0 with nginx

Hey @alexdx,

I would reach out to your hosting provider, it looks like they need to enable access for that particular path.

Hope that helps~

Hi Cory, I checked with my hosting provider (Kinsta) and this error does not pertain to Duplicator so it has nothing to do with the installer failing. It seems the installer just does not work at all on Kinsta sites that are running PHP 8.0. Strange thing is, we are not seeing any errors in log files to point us in the right direction. We are running Duplicator version: 1.4.7.1. We just get a blank page with no errors, no fields showing, just the header, with the version number and the rest of the page is blank. Tried this on multiple sites with the same thing. If I revert back to PHP 7.4 the installer runs fine, but PHP 8.0 has the issue every time.

Log file dupliator created seems to check out:

[Aug 15 16:27:22] 
[Aug 15 16:27:22] ==DUPLICATOR INSTALLER BOOTSTRAP v1.4.7.1==
[Aug 15 16:27:22] ----------------------------------------------------
[Aug 15 16:27:22] Installer bootstrap start
[Aug 15 16:27:22] Manual extract found so not going to extract dup-installer dir
[Aug 15 16:27:22] ERROR: Didn't need to extract the installer.
[Aug 15 16:27:22] Set permissions of /www/duplicatortest_652/public/dup-installer<br/>
[Aug 15 16:27:22] Set permissions of /www/duplicatortest_652/public/dup-installer/assets<br/>
[Aug 15 16:27:22] Set permissions of /www/duplicatortest_652/public/dup-installer/classes<br/>
[Aug 15 16:27:22] Set permissions of /www/duplicatortest_652/public/dup-installer/ctrls<br/>
[Aug 15 16:27:22] Set permissions of /www/duplicatortest_652/public/dup-installer/favicon<br/>
[Aug 15 16:27:22] Set permissions of /www/duplicatortest_652/public/dup-installer/lib<br/>
[Aug 15 16:27:22] Set permissions of /www/duplicatortest_652/public/dup-installer/views<br/>
[Aug 15 16:27:22] Set permissions of /www/duplicatortest_652/public/dup-installer/.htaccess<br/>
[Aug 15 16:27:22] Set permissions of /www/duplicatortest_652/public/dup-installer/dup-archive__[HASH].txt<br/>
[Aug 15 16:27:22] Set permissions of /www/duplicatortest_652/public/dup-installer/dup-database__[HASH].sql<br/>
[Aug 15 16:27:22] Set permissions of /www/duplicatortest_652/public/dup-installer/dup-installer-csrf__[HASH].txt<br/>
[Aug 15 16:27:22] Set permissions of /www/duplicatortest_652/public/dup-installer/dup-installer-log__[HASH].txt<br/>
[Aug 15 16:27:22] Set permissions of /www/duplicatortest_652/public/dup-installer/dup-installer-notices__[HASH].json<br/>
[Aug 15 16:27:22] Set permissions of /www/duplicatortest_652/public/dup-installer/dup-installer-state_[HASH].txt<br/>
[Aug 15 16:27:22] Set permissions of /www/duplicatortest_652/public/dup-installer/dup-scan__[HASH].json<br/>
[Aug 15 16:27:22] Set permissions of /www/duplicatortest_652/public/dup-installer/index.php<br/>
[Aug 15 16:27:22] Set permissions of /www/duplicatortest_652/public/dup-installer/main.installer.php<br/>
[Aug 15 16:27:22] Set permissions of /www/duplicatortest_652/public/dup-installer/php_error__[HASH].log<br/>
[Aug 15 16:27:22] DONE: No detected errors so redirecting to the main installer. Main Installer URI = https://duplicatortest.kinsta.cloud/dup-installer/main.installer.php

Hey @alexdx

Thanks for the feedback! I’m not 100% sure what might be going on. I know that Kinsta is one of the very very few host hosts that bans all kinds of plugins. I think Duplicator might now be on that list. It’s possible they might be doing something behind the scenes with PHP 8. We run a full range of tests for PHP 8 and have not seen any issues on dozens of other major hosts.

If you would like to submit a support ticket for this issue we can have a closer look at your setup. Please provide a link to this forum thread when submitting the ticket.

Hope this helps~

disk_free_space function is disabled.

Kinsta PHP8.0 disable_functions

exec, passthru, shell_exec, system, proc_open, popen, show_source, apache_child_terminate, apache_get_modules, apache_get_version, apache_getenv, apache_note, apache_setenv, posix_kill, posix_mkfifo, posix_setpgid, posix_setsid, posix_setuid, posix_getpwuid, posix_uname, pclose, dl, disk_free_space, diskfreespace, disk_total_space, pcntl_exec, proc_close, proc_get_status, proc_nice, proc_terminate, symlink, link, pcntl_alarm, pcntl_fork, pcntl_waitpid, pcntl_wait, pcntl_wifexited, pcntl_wifstopped, pcntl_wifsignaled, pcntl_wexitstatus, pcntl_wtermsig, pcntl_wstopsig, pcntl_signal, pcntl_signal_dispatch, pcntl_get_last_error, pcntl_strerror, pcntl_sigprocmask, pcntl_sigwaitinfo, pcntl_sigtimedwait, pcntl_exec, pcntl_getpriority, pcntl_setpriority, highlight_file, lchgrp, lchown, prog_get_status, getmypid, getmyuid, getmygid, getrusage, getmyinode, get_current_user, libxml_disable_entity_loader

Hey @yokazek,

Thanks for the update! We’ll get that patched in an upcoming version.

Cheers~