Composer安装-需要ext-mbstring

Question

我正在尝试做一个composer install ...，但是我使用requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system. (Cpanel)和PHP5.6获得了一个requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.错误。

下面是我试图修复错误的方法。

1：yum search mbstring

============================================= N/S matched: mbstring =============================================
ea-php54-php-mbstring.x86_64 : A module for PHP applications which need multi-byte string handling
ea-php55-php-mbstring.x86_64 : A module for PHP applications which need multi-byte string handling
ea-php56-php-mbstring.x86_64 : A module for PHP applications which need multi-byte string handling
ea-php70-php-mbstring.x86_64 : A module for PHP applications which need multi-byte string handling
ea-php71-php-mbstring.x86_64 : A module for PHP applications which need multi-byte string handling
ea-php72-php-mbstring.x86_64 : A module for PHP applications which need multi-byte string handling
rh-php56-php-mbstring.x86_64 : A module for PHP applications which need multi-byte string handling
rh-php70-php-mbstring.x86_64 : A module for PHP applications which need multi-byte string handling
rh-php71-php-mbstring.x86_64 : A module for PHP applications which need multi-byte string handling

2：yum install ea-php56-php-mbstring.x86_64

Loaded plugins: fastestmirror, universal-hooks
Loading mirror speeds from cached hostfile
 * EA4: 110.4.45.120
 * cpanel-addons-production-feed: 110.4.45.120
 * base: ftp.cuhk.edu.hk
 * centosplus: ftp.cuhk.edu.hk
 * epel: ftp.cuhk.edu.hk
 * extras: ftp.cuhk.edu.hk
 * ius: hkg.mirror.rackspace.com
 * updates: ftp.cuhk.edu.hk
Package ea-php56-php-mbstring-5.6.35-1.1.5.cpanel.x86_64 already installed and latest version
Nothing to do

似乎已经安装了mbstring，但是当我试图安装composer时，为什么会出错呢？

另一种方法(在cPanel中更新PHP版本)

1: WHM -已设置为7.1

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2: cPanel -已经设置为7.1

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但是服务器中的版本仍然是5.6

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有任何解决require ext-mbstring错误的建议吗？

Answer 1

安装rh可以解决这个问题，yum install rh-php56-php-mbstring.x86_64。

请检查一下您的服务器上有什么。我的是rh-php56-php-mbstring.x86_64而不是php-mbstring

Answer 2

试着用智能安装mbstring php库。

sudo apt-get install php-mbstring php7.1-mbstring

Answer 3

使用此命令安装mbstrig

 yum install php-mbstring

一旦安装，重启apache

 service httpd restart