Laravel 5安装小问题

报错：

Call to undefined function Illuminate\Foundation\Bootstrap\mb_internal_encoding

解决办法：

https://github.com/laravel/framework/issues/6891

安装mbstring扩展

yum install php-mbstring

Loaded plugins: langpacks
base                                                                                                                                                      | 3.6 kB  00:00:00
epel                                                                                                                                                      | 4.4 kB  00:00:00
extras                                                                                                                                                    | 3.4 kB  00:00:00
mysql-connectors-community                                                                                                                                | 2.5 kB  00:00:00
mysql-tools-community                                                                                                                                     | 2.5 kB  00:00:00
mysql56-community                                                                                                                                         | 2.5 kB  00:00:00
updates                                                                                                                                                   | 3.4 kB  00:00:00
(1/2): updates/7/x86_64/primary_db                                                                                                                        | 1.7 MB  00:00:00
(2/2): epel/x86_64/primary_db                                                                                                                             | 3.5 MB  00:00:00
(1/2): epel/x86_64/updateinfo                                                                                                                             | 372 kB  00:00:00
(2/2): epel/x86_64/pkgtags                                                                                                                                | 1.5 MB  00:00:00
Resolving Dependencies
--> Running transaction check
---> Package php-mbstring.x86_64 0:5.4.16-23.el7_0.3 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

=================================================================================================================================================================================
 Package                                     Arch                                  Version                                             Repository                           Size
=================================================================================================================================================================================
Installing:
 php-mbstring                                x86_64                                5.4.16-23.el7_0.3                                   base                                501 k

Transaction Summary
=================================================================================================================================================================================
Install  1 Package

Total download size: 501 k
Installed size: 1.3 M
Is this ok [y/d/N]: y
Downloading packages:
php-mbstring-5.4.16-23.el7_0.3.x86_64.rpm                                                                                                                 | 501 kB  00:00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : php-mbstring-5.4.16-23.el7_0.3.x86_64                                                                                                                         1/1
  Verifying  : php-mbstring-5.4.16-23.el7_0.3.x86_64                                                                                                                         1/1

Installed:
  php-mbstring.x86_64 0:5.4.16-23.el7_0.3

Complete!
[root@iZ23aefnd0lZ modules]# cd /usr/lib64/php/modules/
[root@iZ23aefnd0lZ modules]# ls
curl.so  fileinfo.so  json.so  mbstring.so  mcrypt.so  mysqli.so  mysql.so  pdo_mysql.so  pdo.so  pdo_sqlite.so  phar.so  sqlite3.so  zip.so

vi /etc/php.ini

末尾增加 extension=mbstring.so

/bin/systemctl restart  httpd.service