ketamina Posted October 14, 2022 Share Posted October 14, 2022 Hello everyone, I have an installation of prestashop 1.7.7.2 with all the updated modules. I ran the "1-Click Upgrade" module and successfully updated to the latest 1.7.8.7 release. (so far so good) The problem is that when I switch from PHP 7.4 to PHP 8.0 on the server, the site is no longer visible. The backoffice is also shown as a blank page. My desire to upgrade arises solely from the fact that my hosting (one.com) at the end of October will remove PHP 7.4 from their servers and only allow the use of PHP 8.0 and above. For this reason I decided to update Prestashop to the latest release 1.7.8.7 Link to comment Share on other sites More sharing options...
juanrojas Posted October 14, 2022 Share Posted October 14, 2022 change the server for one that lets you put the version you want Link to comment Share on other sites More sharing options...
ComGrafPL Posted October 14, 2022 Share Posted October 14, 2022 On 10/14/2022 at 10:48 AM, ketamina said: Hello everyone, I have an installation of prestashop 1.7.7.2 with all the updated modules. I ran the "1-Click Upgrade" module and successfully updated to the latest 1.7.8.7 release. (so far so good) The problem is that when I switch from PHP 7.4 to PHP 8.0 on the server, the site is no longer visible. The backoffice is also shown as a blank page. My desire to upgrade arises solely from the fact that my hosting (one.com) at the end of October will remove PHP 7.4 from their servers and only allow the use of PHP 8.0 and above. For this reason I decided to update Prestashop to the latest release 1.7.8.7 Expand Most hosting has a free either paid option to keep PHP's versions for the clients. Not only keeping one. You should ask them if you didn't yet. 1 Link to comment Share on other sites More sharing options...
ketamina Posted October 14, 2022 Author Share Posted October 14, 2022 thanks guys, i will try to write to one.com support explaining the problem to them. Link to comment Share on other sites More sharing options...
Pmor1 Posted November 13, 2022 Share Posted November 13, 2022 (edited) Hi ketamina, did you manage to solve it? Edited November 13, 2022 by Pmor1 (see edit history) Link to comment Share on other sites More sharing options...
greg_m Posted November 14, 2022 Share Posted November 14, 2022 Reverse back PHP version to latest 7.x (7.4). The Prestashop should work fine again. Soon you can upgrade to Prestashop 8.0 and then upgrade PHP version to 8.0 or 8.1. Link to comment Share on other sites More sharing options...
user8139 Posted November 15, 2022 Share Posted November 15, 2022 When I install prestashop 1.7.8.7, this message appears. What can I do Link to comment Share on other sites More sharing options...
ketamina Posted November 15, 2022 Author Share Posted November 15, 2022 On 11/13/2022 at 12:40 PM, Pmor1 said: Hi ketamina, did you manage to solve it? Expand one.com told me this: On November 28, 2022, PHP 7.4 will be permanently removed from our servers. After that date you will not be able to go back to version 7.4. So be sure to resolve any issues before that date. so now I'm waiting for the 1-click-upgrade module to be updated to allow upgrading to the recently released 8.0. Link to comment Share on other sites More sharing options...
ZIKODK Posted November 15, 2022 Share Posted November 15, 2022 Or find another host. Link to comment Share on other sites More sharing options...
ComGrafPL Posted November 15, 2022 Share Posted November 15, 2022 On 11/15/2022 at 9:00 AM, ketamina said: one.com told me this: On November 28, 2022, PHP 7.4 will be permanently removed from our servers. After that date you will not be able to go back to version 7.4. So be sure to resolve any issues before that date. so now I'm waiting for the 1-click-upgrade module to be updated to allow upgrading to the recently released 8.0. Expand Make a clean install and test your theme and modules, if they will work on 8.0. Don't wait for last seconds. 2 Link to comment Share on other sites More sharing options...
sultanen Posted November 25, 2022 Share Posted November 25, 2022 did you reach a solution ? i to have the same problem Link to comment Share on other sites More sharing options...
ZIKODK Posted November 25, 2022 Share Posted November 25, 2022 Use php7.4 Link to comment Share on other sites More sharing options...
AzharXaiden Posted November 25, 2022 Share Posted November 25, 2022 On 10/14/2022 at 10:48 AM, ketamina said: Hello everyone, I have an installation of prestashop 1.7.7.2 with all the updated modules. I ran the "1-Click Upgrade" module and successfully updated to the latest 1.7.8.7 release. (so far so good) The problem is that when I switch from PHP 7.4 to PHP 8.0 on the server, the site is no longer visible. The backoffice is also shown as a blank page. My desire to upgrade arises solely from the fact that my hosting (one.com) at the end of October will remove PHP 7.4 from their servers and only allow the use of PHP 8.0 and above. For this reason I decided to update Prestashop to the latest release 1.7.8.7 Expand Unfortunately, you will need to upgrade to 8.0.0, same situation here. I don't get why they would remove (old/insecure PHP versions, still give your users freedom in this!) most hosts offer this freedom. I wish you good luck Link to comment Share on other sites More sharing options...
AzharXaiden Posted November 25, 2022 Share Posted November 25, 2022 On 11/15/2022 at 9:00 AM, ketamina said: one.com told me this: On November 28, 2022, PHP 7.4 will be permanently removed from our servers. After that date you will not be able to go back to version 7.4. So be sure to resolve any issues before that date. so now I'm waiting for the 1-click-upgrade module to be updated to allow upgrading to the recently released 8.0. Expand Once they remove PHP 7.4, you will not be able to use this autoupgrade function anymore. Link to comment Share on other sites More sharing options...
ibzslab Posted November 28, 2022 Share Posted November 28, 2022 Hi, Can someone explain me how to work with PS and PHP 8.0 or is PS obsolete? I'm using PS so many years (and upgrade it regulary) but this time.... look like PS not up to datable? come on! Link to comment Share on other sites More sharing options...
ComGrafPL Posted November 28, 2022 Share Posted November 28, 2022 On 11/28/2022 at 8:01 PM, ibzslab said: Hi, Can someone explain me how to work with PS and PHP 8.0 or is PS obsolete? I'm using PS so many years (and upgrade it regulary) but this time.... look like PS not up to datable? come on! Expand For now, if your hosting allow, stay on 7.4 and your actual PS version. PS 1.8 is for testing, mainly. I wouldn't go with it on live store, new either for upgrade. If your host will only allow PHP 8, try to find other one. Here in Poland, most hosting companies keeping older PHP version for free or with small fees. Link to comment Share on other sites More sharing options...
ketamina Posted December 2, 2022 Author Share Posted December 2, 2022 I was forced to move from another hosting. I saved the backup of the site directly from the one.com provider with a comfortable compressed archive + the sql database. I uploaded everything on the new hosting but I can't get out of this problem: Link to comment Share on other sites More sharing options...
juanrojas Posted December 2, 2022 Share Posted December 2, 2022 - clear cache via ftp - enable debug mode via ftp Link to comment Share on other sites More sharing options...
ketamina Posted December 2, 2022 Author Share Posted December 2, 2022 On 12/2/2022 at 12:08 PM, juanrojas said: - clear cache via ftp - enable debug mode via ftp Expand thanks for your quick reply. By "delete the cache" do you mean FTP access to the /cache/ path and delete ALL the content there? i'm usind PLESK 18.0.48 on AlmaLinux 8.7, I already have all the active logs, which ones would you like to see? Link to comment Share on other sites More sharing options...
Pragati P Posted April 4, 2023 Share Posted April 4, 2023 Hi can anyone help me for blank page showing in site. Actually I had migrate the prestashop 1.7.8 to another server but on another server the php is 8.0 and previously I am using the 7.4 so is this issue is because of php version? Link to comment Share on other sites More sharing options...
greg_m Posted April 4, 2023 Share Posted April 4, 2023 @Pragati P - PS 1.7.8 doesn't support PHP 8.0. Updated compatibility chart below (source: link) If you can't downgrade PHP, perhaps you can upgrade PS? PS 8.x supports PHP 8.0. Check the compatibility of other addons, themes you use with PS 8.0 first. 1 Link to comment Share on other sites More sharing options...
thx2012 Posted October 24, 2023 Share Posted October 24, 2023 I have similar problem, I'm unable to upgrade php from 7.2 to any other version without blank page or 500 Server Error. If I revert back to php 7.2, I'm able to access again. How do you upgrade php version without disrupting the site? Link to comment Share on other sites More sharing options...
musicmaster Posted October 25, 2023 Share Posted October 25, 2023 On 10/24/2023 at 2:40 PM, thx2012 said: I have similar problem, I'm unable to upgrade php from 7.2 to any other version without blank page or 500 Server Error. If I revert back to php 7.2, I'm able to access again. How do you upgrade php version without disrupting the site? Expand It would be informative if you took the trouble to tell us your Prestashop version. Link to comment Share on other sites More sharing options...
thx2012 Posted October 25, 2023 Share Posted October 25, 2023 On 10/25/2023 at 2:12 PM, musicmaster said: It would be informative if you took the trouble to tell us your Prestashop version. Expand v 1.7.8.8 Thank you, I look forward to your input! Link to comment Share on other sites More sharing options...
musicmaster Posted October 25, 2023 Share Posted October 25, 2023 Most likely a module that cannot handle a higher PHP version. Enable debug mode to see what causes the error: https://www.dreamtheme.eu/blog/how-to-enable-prestashop-debug-mode/ Link to comment Share on other sites More sharing options...
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