<分区>
首先，
PHP 版本:PHP 7.0.18 & 发行版:CentOS Linux 发行版 7.3.1611(核心版) 我是 sudo 用户。
我正在设置一个 Themosis安装了 Wordpress，并且我的所有 Apache 配置都运行良好。
Themosis 使用 Composer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 安装站点所需的一切，其中包括 vendor 文件夹和一个名为 cms 的文件夹，其中安装了 Wordpress。我实际得到的是:
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].
没有制作供应商文件，也没有制作 Wordpress 的 Web 文件夹。到目前为止，这是我尝试过的:
composer 需要 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].
我尝试使用
sudo yum install php-mbstring安装 mbstring。这没有找到包，所以我按照 this StackOverflow question 中的步骤操作并从镜像 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，我读到您需要为 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。
尝试更新 yum
磁盘要求: /文件系统至少需要 308MB 以上的空间。
我认为我的问题与 themosis 或 Composer 本身无关。我找到了 this possible solution , (yum install php-mbstring --enablerepo=remi) 但我不想完全破坏我的服务器，而且我不知道如果它出错了如何撤消它。我需要这个 Remi 存储库来解决这个问题吗？