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PHP Docker GD ライブラリのインストール

Last updated at Posted at 2023-08-04

環境

  • PHP: 8.2.8

Dockerfile(差分だけ)

RUN apt-get update \
  && apt-get -y install --no-install-recommends \
    libpng-dev libjpeg-dev \
  && docker-php-ext-configure gd --with-jpeg \
  && docker-php-ext-install \
    -j$(nproc) gd

--with-png オプションはデフォルトで組み込まれたから廃止されたそうです(詳しくないです)
--with-jpeg jpegを使うためにはこのオプションが必要でした。
-j$(nproc) nprocコマンドはCPUコア数が返り、-jオプションは指定したCPUコア数で並列ビルドを行うための設定になるようです。

参考

https://tech.kurojica.com/archives/27414/
https://github.com/docker-library/php/issues/912

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