PHP5.6 cannot execute the exec function under centos

linux - PHP5.6 cannot execute the exec function under centos

I have removed this function in disable_functions, no error is reported, but it is not executed.
I found a lot on the Internet that it is safe mode, but there is no safe mode in 5.6, and I have changed the running permission of the code to 777

I have removed this function in disable_functions, no error is reported, but it is not executed.
I found a lot on the Internet that it is safe mode, but there is no safe mode in 5.6, and I have changed the running permission of the code to 777

Initial judgment is that it is selinux...

php.ini safe_mode = On Try this Is it possible? But it can only be executed in the directory set by safe_mode_exec_dir

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