[PHP-BUG] Bug #75199 [NEW]: Random php fatal error , Class contains 1 abstract method

From:             panying2000 at gmail dot com
Operating system: Apache/2.4.25 (Win64) PHP/7.0.17
PHP version:      Irrelevant
Package:          PHP Language Specification
Bug Type:         Bug
Bug description:Random php fatal error , Class contains 1 abstract method

Description:
------------
It is an random issue , but if it happened , the error can't be skipped
.

In my case , php report 

Fatal error: Class MySqlSessionHandler contains 1 abstract method and
must therefore be declared abstract or implement the remaining methods
(SessionHandlerInterface::read)

Before restart apache , I tried to modify code , php run well before
require that class file , but it report error once include that class
file ( modify that class file doesn't help either ).

Restart apache , fatal error go away . 

I don't enable opcache , so it is similar with
https://bugs.php.net/bug.php?id=72112 , but not an opcache bug 

And in internet , it report similar issue around , 

https://stackoverflow.com/questions/42503240/intermittent-php-abstract-class-error

My Apache Setting , wish can help,
Apache Version	Apache/2.4.25 (Win64) PHP/7.0.17 OpenSSL/1.0.2k
Apache API Version	20120211
Virtual Server	Yes
Loaded Modules	core mod_win32 mpm_winnt http_core mod_so mod_php7
mod_actions mod_alias mod_allowmethods mod_asis mod_auth_basic
mod_authn_core mod_authn_file mod_authz_core mod_authz_groupfile
mod_authz_host mod_authz_user mod_autoindex mod_cgi mod_deflate mod_dir
mod_env mod_filter mod_include mod_info mod_isapi mod_log_config
mod_mime mod_negotiation mod_rewrite mod_setenvif mod_socache_shmcb
mod_ssl mod_status




-- 
Edit bug report at https://bugs.php.net/bug.php?id=75199&edit=1
-- 
Try a snapshot (PHP 5.4):   https://bugs.php.net/fix.php?id=75199&r=trysnapshot54
Try a snapshot (PHP 5.5):   https://bugs.php.net/fix.php?id=75199&r=trysnapshot55
Try a snapshot (trunk):     https://bugs.php.net/fix.php?id=75199&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=75199&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=75199&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=75199&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=75199&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=75199&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=75199&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=75199&r=notwrong
Not enough info:            https://bugs.php.net/fix.php?id=75199&r=notenoughinfo
Submitted twice:            https://bugs.php.net/fix.php?id=75199&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=75199&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=75199&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=75199&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=75199&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=75199&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=75199&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=75199&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=75199&r=mysqlcfg