What should I do if the php extension is not displayed?

The reason why the php extension is not displayed is because php.ini is not specified when php-fpm is started. The solution is to specify the php.ini file to start the "php-fpm" service.

The operating environment of this article: linux5.9.8 system, PHP5.6 version, DELL G3 computer

What should I do if the php extension is not displayed?

After php installs the extension module, the reason why restarting does not take effect and the solution

In the lnmp operation and maintenance environment, we often encounter that some extension modules that php depends on are not installed, which requires These extension modules will be added later. After the extensions are installed and configured, you will often find that after the php-fpm service is restarted, these extensions are not actually loaded! The following is an example to illustrate:

Example environment:

php安装包存放路径：/data/software/php-5.6.10.tar.gz
php安装目录：/data/php

[root@zabbix ~]# ll /data/software/php-5.6.10.tar.gz 
-rw-r--r-- 1 root root 18306403 6月  11 2015 /data/software/php-5.6.10.tar.gz
[root@zabbix ~]# ll -d /data/software/php-5.6.10
drwxr-xr-x 17 www www 4096 10月 13 19:38 /data/software/php-5.6.10
[root@zabbix ~]# ls /data/php/
bin  etc  include  lib  php  sbin  var

Using the php -m command, it is found that the bcmath and gettest extensions are missing

[root@zabbix ~]# vim /etc/profile
export PATH=$PATH:/data/php/bin
[root@zabbix ~]# source /etc/profile

[root@zabbix ~]# php -m|grep bcmath
[root@zabbix ~]# php -m|grep gettext
[root@zabbix ~]#

Now start installing bcmatn and gettest extensions

安装bcmath扩展
[root@zabbix ~]# cd /data/software/php-5.6.10/ext/bcmath/
[root@zabbix bcmath]# /data/php/bin/phpize
[root@zabbix bcmath]# ./configure --with-php-config=/data/php/bin/php-config
[root@zabbix bcmath]# make && make
.......
编译成功之后会告诉你一个目录
Installing shared extensions:     /data/php/lib/php/extensions/no-debug-non-zts-20131226
 
安装gettext扩展
[root@zabbix ~]# cd /data/software/php-5.6.10/ext/gettext/
[root@zabbix gettext]# /data/php/bin/phpize
[root@zabbix gettext]# ./configure --with-php-config=/data/php/bin/php-config
[root@zabbix gettext]# make && make
.......
编译成功之后会告诉你一个目录
Installing shared extensions:     /data/php/lib/php/extensions/no-debug-non-zts-20131226
 
[root@zabbix ~]# ll /data/php/lib/php/extensions/no-debug-non-zts-20131226
总用量 2336
-rwxr-xr-x 1 root root  380152 10月 13 23:03 bcmath.so
-rwxr-xr-x 1 root root   50376 10月 13 23:31 gettext.so

配置php.ini
[root@zabbix ~]# vim /data/php/etc/php.ini
.........
extension_dir = "/data/php/lib/php/extensions/no-debug-non-zts-20131226"
extension=bcmath.so
extension=gettext.so
 
重启php-fpm
[root@zabbix ~]# /etc/init.d/php-fpm restart
Gracefully shutting down php-fpm . done
Starting php-fpm  done
 
然后再次查看bcmath和gettext扩展安装后，是否生效？
[root@zabbix ~]# php -m|grep bcmath
[root@zabbix ~]# php -m|grep gettext
[root@zabbix ~]#
 
发现并没有生效！ why！？

This is because when php-fpm started, php was not specified .ini, so it never took effect!

[root@zabbix etc]# /etc/init.d/php-fpm restart
Gracefully shutting down php-fpm . done
Starting php-fpm  done
[root@zabbix etc]# ps -ef|grep php-fpm
root     19529     1  0 23:37 ?        00:00:00 php-fpm: master process (/data/php/etc/php-fpm.conf)
www      19530 19529  0 23:37 ?        00:00:00 php-fpm: pool www
www      19531 19529  0 23:37 ?        00:00:00 php-fpm: pool www
root     19533 17173  0 23:37 pts/4    00:00:00 grep --color=auto php-fpm

解决办法：
1）指定php.ini文件来启动php-fpm服务
[root@zabbix etc]# /etc/init.d/php-fpm stop
Gracefully shutting down php-fpm . done
[root@zabbix etc]# ps -ef|grep php-fpm
root     19541 17173  0 23:38 pts/4    00:00:00 grep --color=auto php-fpm
[root@zabbix etc]# /data/php/sbin/php-fpm -y /data/php/etc/php-fpm.conf -c /data/php/etc/php.ini
[root@zabbix etc]# ps -ef|grep php-fpm
root     19543     1  0 23:38 ?        00:00:00 php-fpm: master process (/data/php/etc/php-fpm.conf)
www      19544 19543  0 23:38 ?        00:00:00 php-fpm: pool www
www      19545 19543  0 23:38 ?        00:00:00 php-fpm: pool www
root     19547 17173  0 23:39 pts/4    00:00:00 grep --color=auto php-fpm

2）要是上面启动后，安装的php扩展还是没有生效！那就可能是php.ini文件没有放对路径（这里我是直接放大php的etc目录下的）
[root@zabbix ~]# ll /data/php/etc/php.ini
-rw-r--r-- 1 root root 73243 10月 13 23:32 /data/php/etc/php.ini
[root@zabbix ~]# cp /data/php/etc/php.ini /data/php/lib/
[root@zabbix ~]# ll /data/php/lib/php.ini 
-rw-r--r-- 1 root root 73243 10月 13 23:35 /data/php/lib/php.ini

然后再接着重启php-fpm服务即可！
[root@zabbix ~]# /etc/init.d/php-fpm restart
Gracefully shutting down php-fpm . done
Starting php-fpm  done
[root@zabbix ~]# ps -ef|grep php
root     19564     1  0 23:43 ?        00:00:00 php-fpm: master process (/data/php/etc/php-fpm.conf)
www      19565 19564  0 23:43 ?        00:00:00 php-fpm: pool www
www      19566 19564  0 23:43 ?        00:00:00 php-fpm: pool www
root     19568 17173  0 23:43 pts/4    00:00:00 grep --color=auto php
[root@zabbix ~]# 

最后再次查看bcmath和gettext扩展有没有生效？
[root@zabbix ~]# php -m|grep bcmath
bcmath
[root@zabbix ~]# php -m|grep gettext
gettext
[root@zabbix ~]#

Recommended study: "PHP Video Tutorial"

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