升级到PHP 7后，如何在CentOS上安装MbString

Question

首先，

PHP版本：PHP 7.0.18＆amp; distro ：Centos Linux版本7.3.1611（core）我是sudo用户。

我正在设置一个themosis WordPress安装，并且我所有的Apache配置内容都很好。

主题使用作曲家来管理依赖项。我遇到的问题是当我在应用程序的根部运行composer install时。应该发生的事情是，作曲家安装了我在网站上需要的所有内容，其中包括一个供应商文件夹和一个带有WordPress安装的文件夹，称为CMS。我实际上得到的是：

 Problem 1
    - illuminate/database v5.5.0 requires illuminate/support 5.5.* -> satisfiable by illuminate/support[v5.5.0, v5.5.2].
    - illuminate/database v5.5.2 requires illuminate/support 5.5.* -> satisfiable by illuminate/support[v5.5.0, v5.5.2].
    - illuminate/database v5.4.0 requires illuminate/support 5.4.* -> satisfiable by illuminate/support[v5.4.0, v5.4.13, v5.4.17, v5.4.19, v5.4.27, v5.4.36, v5.4.9].
    - illuminate/database v5.4.13 requires illuminate/support 5.4.* -> satisfiable by illuminate/support[v5.4.0, v5.4.13, v5.4.17, v5.4.19, v5.4.27, v5.4.36, v5.4.9].
    - illuminate/database v5.4.17 requires illuminate/support 5.4.* -> satisfiable by illuminate/support[v5.4.0, v5.4.13, v5.4.17, v5.4.19, v5.4.27, v5.4.36, v5.4.9].
    - illuminate/database v5.4.19 requires illuminate/support 5.4.* -> satisfiable by illuminate/support[v5.4.0, v5.4.13, v5.4.17, v5.4.19, v5.4.27, v5.4.36, v5.4.9].
    - illuminate/database v5.4.27 requires illuminate/support 5.4.* -> satisfiable by illuminate/support[v5.4.0, v5.4.13, v5.4.17, v5.4.19, v5.4.27, v5.4.36, v5.4.9].
    - illuminate/database v5.4.36 requires illuminate/support 5.4.* -> satisfiable by illuminate/support[v5.4.0, v5.4.13, v5.4.17, v5.4.19, v5.4.27, v5.4.36, v5.4.9].
    - illuminate/database v5.4.9 requires illuminate/support 5.4.* -> satisfiable by illuminate/support[v5.4.0, v5.4.13, v5.4.17, v5.4.19, v5.4.27, v5.4.36, v5.4.9].
    - illuminate/database v5.3.0 requires illuminate/support 5.3.* -> satisfiable by illuminate/support[v5.3.0, v5.3.16, v5.3.23, v5.3.4].
    - illuminate/database v5.3.16 requires illuminate/support 5.3.* -> satisfiable by illuminate/support[v5.3.0, v5.3.16, v5.3.23, v5.3.4].
    - illuminate/database v5.3.23 requires illuminate/support 5.3.* -> satisfiable by illuminate/support[v5.3.0, v5.3.16, v5.3.23, v5.3.4].
    - illuminate/database v5.3.4 requires illuminate/support 5.3.* -> satisfiable by illuminate/support[v5.3.0, v5.3.16, v5.3.23, v5.3.4].
    - illuminate/support v5.5.2 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
    - illuminate/support v5.5.0 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
    - illuminate/support v5.4.9 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
    - illuminate/support v5.4.36 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
    - illuminate/support v5.4.27 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
    - illuminate/support v5.4.19 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
    - illuminate/support v5.4.17 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
    - illuminate/support v5.4.13 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
    - illuminate/support v5.4.0 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
    - illuminate/support v5.3.4 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
    - illuminate/support v5.3.23 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
    - illuminate/support v5.3.16 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
    - illuminate/support v5.3.0 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
    - Installation request for illuminate/database ^5.3 -> satisfiable by illuminate/database[v5.3.0, v5.3.16, v5.3.23, v5.3.4, v5.4.0, v5.4.13, v5.4.17, v5.4.19, v5.4.27, v5.4.36, v5.4.9, v5.5.0, v5.5.2].

未制作供应商文件，持有WordPress的Web文件夹也不是。这是我到目前为止尝试的：

1. composer require illuminate/support 5.5.*这是因为需要mbString而失败。

结果：

Problem 1
- illuminate/support v5.5.2 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- illuminate/support v5.5.0 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- Installation request for illuminate/support 5.5.* -> satisfiable by illuminate/support[v5.5.0, v5.5.2].

2. 我尝试使用sudo yum install php-mbstring安装MBSTRING。这找不到包裹，因此我遵循了这个stackoverflow问题中的步骤，并从镜像URL切换到baseurl=http://centos.intergenia.de/$releasever/updates/$basearch/。这找到了一个软件包，但仍然失败。这是我们解决实际问题的地方：

   错误：PHP70U-COMMON与PHP-Common-5.4.16-42.el7.x86_64错误：php70u-json与PHP-Common-5.4.16-42.el7.x86_64

从我的Google研究中，我读到您需要为PHP7安装额外的存储库，但是我不知道那是什么意思，或者这是我需要做的，或者如何做。我不知道谁在我面前有这个服务器空间，但是我知道它已经升级为7 php 7。

3. 试图更新yum

   磁盘要求：/filesystem上至少需要更多的空间。

我不认为我的问题与Themisos或作曲家本身有关。我找到了这个可能的解决方案（yum install php-mbstring --enablerepo=remi），但不想完全破坏我的服务器，如果错误的话，我不知道该如何撤消该服务器。这个remi存储库是我需要修复的吗？

Answer 1

您需要安装其他扩展名与已经安装的软件包相同的软件包名称空间：

• remi：php-mbstring（请参阅向导）
• Webtatic：php70w-mbstring
• ius：php70u-mbstring
• etc