Description of problem:
When I use phpMyAdmin in my Fedora 28 box, I keep getting many selinux alerts.
For some unknown reason, there are new files written in /var/lib/phpMyAdmin/temp/twig.
The new files created, like /var/lib/phpMyAdmin/temp/twig/80/809dbf34efabcf21fa6d57b8d6f95b7ad7ac7d190851f4ef36fa9f94bac71c36.php have
var_lib_t. 
SELinux is preventing php-fpm from 'map' accesses on the file /var/lib/phpMyAdmin/temp/twig/80/809dbf34efabcf21fa6d57b8d6f95b7ad7ac7d190851f4ef36fa9f94bac71c36.php.

*****  Plugin catchall (100. confidence) suggests   **************************

If you believe that php-fpm should be allowed map access on the 809dbf34efabcf21fa6d57b8d6f95b7ad7ac7d190851f4ef36fa9f94bac71c36.php file by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
Do
allow this access for now by executing:
# ausearch -c 'php-fpm' --raw | audit2allow -M my-phpfpm
# semodule -X 300 -i my-phpfpm.pp

Additional Information:
Source Context                system_u:system_r:httpd_t:s0
Target Context                system_u:object_r:var_lib_t:s0
Target Objects                /var/lib/phpMyAdmin/temp/twig/80/809dbf34efabcf21f
                              a6d57b8d6f95b7ad7ac7d190851f4ef36fa9f94bac71c36.ph
                              p [ file ]
Source                        php-fpm
Source Path                   php-fpm
Port                          <Άγνωστο>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.14.1-30.fc28.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 4.16.12-300.fc28.x86_64 #1 SMP Fri
                              May 25 21:13:28 UTC 2018 x86_64 x86_64
Alert Count                   36
First Seen                    2018-05-31 20:21:54 EEST
Last Seen                     2018-05-31 20:22:23 EEST
Local ID                      b056e67d-d04b-4f09-bcde-f216e67506e4

Raw Audit Messages
type=AVC msg=audit(1527787343.814:3824): avc:  denied  { map } for  pid=11315 comm="php-fpm" path="/var/lib/phpMyAdmin/temp/twig/80/809dbf34efabcf21fa6d57b8d6f95b7ad7ac7d190851f4ef36fa9f94bac71c36.php" dev="md126" ino=40632703 scontext=system_u:system_r:httpd_t:s0 tcontext=system_u:object_r:var_lib_t:s0 tclass=file permissive=0


Hash: php-fpm,httpd_t,var_lib_t,file,map

Version-Release number of selected component:
selinux-policy-3.14.1-30.fc28.noarch

Additional info:
component:      selinux-policy
reporter:       libreport-2.9.5
hashmarkername: setroubleshoot
kernel:         4.16.12-300.fc28.x86_64
type:           libreport