Cannot run Gearman worker - undefined symbol: ZVAL_NEW_ARR

Question

I have installed Gearman on my system and when I run php --info | grep gearman I've got

php --info | grep gearman
gearman
gearman support => enabled
libgearman version => 1.1.19.1+ds

Also, I have added in php.ini - extension=/usr/lib/php/20210902/gearman.so

lsof -i tcp:4730 shows that it is running

COMMAND     PID USER   FD   TYPE  DEVICE SIZE/OFF NODE NAME
gearmand 297767 root   10u  IPv4 1211167      0t0  TCP localhost:4730 (LISTEN)

When I try to run a worker I've got:

php: symbol lookup error: /usr/lib/php/20210902/gearman.so: undefined symbol: ZVAL_NEW_ARR

Workers/clients are the basic ones from the Gearman page. Worker:

<?php
$worker= new GearmanWorker();
$worker->addServer();
$worker->addFunction("reverse", "my_reverse_function");
while ($worker->work());

function my_reverse_function($job)
{
  return strrev($job->workload());
}
?>

Client

<?php
$client= new GearmanClient();
$client->addServer();
print $client->do("reverse", "Hello World!");
?>

Can anyone help here?

Answer 1

I had the same issue and it was because the latest release of Gearman doesn't support php8.1 (https://github.com/php/pecl-networking-gearman/commit/7da13e4babc17067b2b45d6b37041c3c8ed91637).

I used the build instructions from How to install gearman extension in php7 running on ubuntu 18.04 but cloned the latest commit from their git repo instead of using the downloadable package and that worked for me.

So for me running on centos7 with php8.1 from remi's repo I had...

git clone https://github.com/php/pecl-networking-gearman.git
cd pecl-networking-gearman
/opt/remi/php81/root/bin/phpize
./configure --with-php-config=/opt/remi/php81/root/bin/php-config
make
make install
echo "extension=gearman.so" | tee /etc/opt/remi/php81/php.d/20-gearman.ini