升级到 PHP 7 后如何在 CentOS 上安装 mbstring [重复]

Question

首先，

PHP 版本：PHP 7.0.18 & 发行版：CentOS Linux 发行版 7.3.1611（核心） 我是 sudo 用户。

我正在设置一个Themosis Wordpress 安装，并且我的所有 apache 配置都运行良好。

Themosis 使用Composer 来管理依赖关系。我遇到的问题是当我在应用程序的根目录中运行 composer install 时。应该发生的是，composer 安装了我需要的站点的所有内容，其中包括一个供应商文件夹和一个名为 cms 的文件夹，其中包含 Wordpress 安装。我实际上得到的是这样的：

 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].

没有制作供应商文件，也没有制作包含 Wordpress 的 web 文件夹。到目前为止，这是我尝试过的：

1. composer require illuminate/support 5.5.* 这失败了，因为它需要 mbstring。

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].

1. 我尝试使用sudo yum install php-mbstring 安装mbstring。这个没有找到包，所以我按照this StackOverflow question中的步骤，从镜像URL切换到baseurl=http://centos.intergenia.de/$releasever/updates/$basearch/。这找到了一个包，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 冲突 错误：php70u-json 与 php-common-5.4.16-42.el7.x86_64 冲突

从我的 Google 研究中，我了解到您需要为 PHP7 安装额外的存储库，但我不知道这意味着什么，或者这是否是我需要做的，或者如何去做。我不知道谁在我之前拥有这个服务器空间，但我知道在我拿到它之前它已经升级到 PHP 7。

1. 试图更新 yum

   磁盘要求： / 文件系统至少需要多出 308MB 的空间。

我认为我的问题与主题化或 Composer 本身无关。我找到了this possible solution, (yum install php-mbstring --enablerepo=remi) 但不想完全破坏我的服务器，如果它出错了我不知道如何撤消该服务器。我需要这个 Remi 存储库来解决这个问题吗？

Answer 1

您需要安装的附加扩展与已安装的包相同的包命名空间：

• remi: php-mbstring（见Wizard）
• webtatic: php70w-mbstring
• IUS: php70u-mbstring
• 等