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The main content of this article is "how to solve the problem that php-fpm can't start". Interested friends might as well take a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn how to solve the problem that php-fpm can't start.

Php-fpm can not start the solution: 1, re-download a 64-bit "ZendGuardLoader.so"; 2, put it under "/ usr/local/zend/"; 3, re-execute "lamp php-fpm start".

Operating environment: ubuntu 16.04system, PHP5.3 version, DELL G3 computer

What if php-fpm can't start? Failed to start php-fpm?

Startup error phenomenon: wrong ELF class: ELFCLASS32

Test@ubuntu:/usr/local/zend$ sudo lnmp php-fpm start+---+ | Manager for LNMP Written by Licess | +-+ | http://lnmp.org | +-+ Starting php-fpm Failed loading / usr/local/zend/ZendGuardLoader.so: / usr/local/zend/ZendGuardLoader.so: wrong ELF class: ELFCLASS32 [03-May-2017 00:03:15] ERROR: FPM initialization failedfailed

This error is due to the fact that the ZendGuardLoader.so module called by the php-fpm module is a 32-bit module, but the current system is 64 for the system, so it is wrong to download a 64-bit ZendGuardLoader.so and put it under / usr/local/zend/, and then re-execute lamp php-fpm start.

The following are the repair steps:

Using the file command to view the file information of the current ZendGuardLoader.so, you can see that the current so file is a 32-bit file.

Test@ubuntu:/usr/local/zend$ file ZendGuardLoader.so

ZendGuardLoader.so: ELF 32-bit LSB shared object, Intel 80386, version 1 (SYSV), dynamically linked, stripped

Download and extract the 64-bit ZendGuardLoader, then replace the original .so file and restart php-fpm

Wget http://downloads.zend.com/guard/5.5.0/ZendGuardLoader-php-5.3-linux-glibc23-x86_64.tar.gz

Tar-xvf ZendGuardLoader-php-5.3-linux-glibc23-x86_64.tar.gz

Cp ZendGuardLoader-php-5.3-linux-glibc23-x86_64/php-5.3.x/ZendGuardLoader.so / usr/local/zend/

If you re-use file to look at the replaced ZendGuardLoader.so, you can see the file that is currently 64-bit.

Test@ubuntu:/usr/local/zend$ file ZendGuardLoader.so

ZendGuardLoader.so: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, stripped

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