PHP extension installation does not take effect

php extension installation does not take effect?

The reason why php does not take effect after restarting after installing the extension module And solutions

In the lnmp operation and maintenance environment, we often encounter that some extension modules that PHP depends on are not installed, which requires subsequent addition of these extension modules. 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 installation package storage path:/data/software/php-5.6.10.tar.gz

php Installation directory:/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

Use the php -m command and find 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 the bcmatn and gettest extensions

Install bcmath extension

[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
.......

You will be informed of a directory after successful compilation

Installing shared extensions:     /data/php/lib/php/extensions/no-debug-non-zts-20131226

Install gettext extension

[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
.......

After successful compilation, you will be informed One directory

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

Total usage 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

Configure 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

Restart php-fpm

[root@zabbix ~]# /etc/init.d/php-fpm restart
Gracefully shutting down php-fpm . done
Starting php-fpm  done

Then check again whether the bcmath and gettext extensions have taken effect after they are installed?

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

Found that it didn’t take effect! why! ?

This is because php.ini was not specified when php-fpm was started, 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

Solution:

1) Specify the php.ini file to start the php-fpm service

[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) If after starting the above, the installed php extension still does not take effect! Then it may be that the php.ini file is not placed in the right path (here I directly enlarge the etc directory of php)

[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

Then restart the php-fpm service!

[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 ~]#

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