stuclark

I eventually found the issue - turns out there's been a difference in the build of PHP on Windows depending upon which version of the VSC runtimes they were built against.

One version specifically had multi_exec disabled 🤬

Does anyone have any further ideas on this issue? My server is saying all PHP pre-requisites are met, yet the same issue exists on PHP8.1 and PHP 8.2

17 minutes ago, Jim M said:

Please downgrade to PHP 8.1. PHP 8.2 is not supported.

I'm getting exactly the same error on PHP 8.1.27 - exactly the same error message

I've double checked that cURL is enabled and also modified the above script to check for the curl_multi_exec() function, yet I still get the same error:

Fatal error: Uncaught Error: Call to undefined function IPS\Http\Request\curl_multi_exec() in <PATH_TO_WEBSITE>\system\Http\Request\Curl.php:442 Stack trace: #0 <PATH_TO_WEBSITE>\system\Http\Request\Curl.php(496): IPS\Http\Request\_Curl->_executeMh() #1 <PATH_TO_WEBSITE>\system\Http\Request\Curl.php(321): IPS\Http\Request\_Curl->_executeAndFollowRedirects('POST', Array) #2 <PATH_TO_WEBSITE>\init.php(1116): IPS\Http\Request\_Curl->post(Array) #3 <PATH_TO_WEBSITE>\init.php(1050): IPS\IPS::reportExceptionToIPS(Object(Error)) #4 [internal function]: IPS\IPS::exceptionHandler(Object(Error)) #5 {main} thrown in <PATH_TO_WEBSITE>\system\Http\Request\Curl.php on line 442

It should be noted I am running this on Windows2019 using Apache 2.4.58 and PHP 8.2.3

PHP info output for cURL shows:

curl

(updated ips4 script attached showing the function I'm checking for)

ips4-new.php

55 minutes ago, Stuart Silvester said:

A blank page is typically a PHP error. Have a look in your servers PHP Error log for any errors that occurred around the time you tried to upgrade

Sort of - PHP was erroring, but not becuase of a server setting (apparently)

Here's the PHP error in full:

Fatal error: Uncaught Error: Call to undefined function IPS\Http\Request\curl_multi_exec() in <PATH_TO_WEBSITE>\system\Http\Request\Curl.php:442 Stack trace: #0 <PATH_TO_WEBSITE>\system\Http\Request\Curl.php(496): IPS\Http\Request\_Curl->_executeMh() #1 <PATH_TO_WEBSITE>\system\Http\Request\Curl.php(321): IPS\Http\Request\_Curl->_executeAndFollowRedirects('POST', Array) #2 <PATH_TO_WEBSITE>\init.php(1116): IPS\Http\Request\_Curl->post(Array) #3 <PATH_TO_WEBSITE>\init.php(1050): IPS\IPS::reportExceptionToIPS(Object(Error)) #4 [internal function]: IPS\IPS::exceptionHandler(Object(Error)) #5 {main} thrown in <PATH_TO_WEBSITE>\system\Http\Request\Curl.php on line 442

When trying to upgrade from 4.7.0 to 4.7.14 (yes, in one step), the upgrade fails after the file extraction step and displays a blank page when trying to load the "admin/?app=core&module=system&controller=upgrade&check=1" URL.

The database and site are still in existence and the admin dashboard still works; but there is a lock applied somewhere which results in the front end displaying an error of
"We're sorry, this web site is unavailable while an update is in progress.

You can try again by clicking the button below, or try again later. "

Trying to restart the upgrade from admin/upgrade displays another blank page after logging in successfully.

The only way to bring the site back online I've found is to restore the physical files *AND* complete database, which then releases the upgrade lock and makes the front end available again. However, this obviously reverts the site to 4.7.0