PHP Warning: cannot restore segment prot after

Failed loading/usr/local/Zend/lib/Optimizer-3.3.3/ZendOptimizer. so:/usr/local/Zend/lib/Optimizer-3.3.3/ZendOptimizer. so: cannot restore segment prot after reloc: Permission denied

It turns out this is a ghost of SELinux. There are two solutions:
1. Use the chcon command
Example: chcon-t texrel_shlib_t/usr/local/Zend/lib/Optimizer-3.3.3/php-5.2.x/ZendOptimizer. so
2. Disable SELinux
Change the content of the/etc/sysconfig/selinux file to SELINUX = disabled.

 

When apache is started after the GD library is installed, the php library will be prompted. You can use the same method to solve this problem.