由于 mbstring，作曲家没有安装 laravel 项目

Question

我正在尝试通过 composer install 安装 laravel 项目，但作为回报，它给出了以下错误。

Problem 1
    - Installation request for laravel/framework v7.14.1 -> satisfiable by laravel/framework[v7.14.1].
    - laravel/framework v7.14.1 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
  Problem 2
    - Installation request for league/commonmark 1.4.3 -> satisfiable by league/commonmark[1.4.3].
    - league/commonmark 1.4.3 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
  Problem 3
    - Installation request for facade/ignition 2.0.6 -> satisfiable by facade/ignition[2.0.6].
    - facade/ignition 2.0.6 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
  Problem 4
    - Installation request for mockery/mockery 1.4.0 -> satisfiable by mockery/mockery[1.4.0].
    - mockery/mockery 1.4.0 requires php ^7.3.0 -> your PHP version (7.2.24) does not satisfy that requirement.
  Problem 5
    - Installation request for phpunit/phpunit 8.5.5 -> satisfiable by phpunit/phpunit[8.5.5].
    - phpunit/phpunit 8.5.5 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
  Problem 6
    - Installation request for scrivo/highlight.php v9.18.1.1 -> satisfiable by scrivo/highlight.php[v9.18.1.1].
    - scrivo/highlight.php v9.18.1.1 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
  Problem 7
    - laravel/framework v7.14.1 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
    - facade/flare-client-php 1.3.2 requires illuminate/pipeline ^5.5|^6.0|^7.0 -> satisfiable by laravel/framework[v7.14.1].
    - Installation request for facade/flare-client-php 1.3.2 -> satisfiable by facade/flare-client-php[1.3.2].

但是php72中已经安装了mbstring。首先我检查php --v 的版本，它返回了

PHP 7.2.24

然后检查加载的模块php72 -m 并且那里也没有mbstring 没有问题...之后我检查了mbstring 是否启用php72 -i | grep mbstring 并且它已启用

多字节解码支持使用 mbstring => 启用

到底为什么作曲家没有看到mbstring？我正在查看composer show -p 的模块。而且NO没有mbstring！知道为什么作曲家没有看到 mbstring，我该如何解决这个问题？

另外我在 Centos 7

Answer 1

日志不言自明。

laravel/framework v7.14.1 需要 ext-mbstring

league/commonmark 1.4.3 需要 ext-mbstring

外观/点火 2.0.6 需要 ext-mbstring

phpunit/phpunit 8.5.5 需要 ext-mbstring

scrivo/highlight.php v9.18.1.1 需要 ext-mbstring

试试这个命令

yum install php-mbstring

然后

作曲家更新

Answer 2

php7.2 缺少您的 mbstring 扩展

运行sudo apt-get install -y php7.2-mbstring

编辑

此外，嘲弄/嘲弄 1.4.0 需要 php ^7.3.0。 我建议升级你的项目 php 版本。