


Why does an error occur when installing an extension using PECL in a Docker environment? How to solve it?
Apr 01, 2025 pm 03:06 PMTroubleshooting and repairing failed installation of PECL extension in Docker
When installing PHP extensions using PECL in Docker environment, you often encounter various problems. This article will analyze and resolve fatal error: uncaught error: call to undefined function _parsefeaturesheaderfile()
error through a practical case.
Question description:
When trying to install any PHP extensions using PECL in Docker, I get the following error:
<code>fatal error: uncaught error: call to undefined function _parsefeaturesheaderfile() in /usr/local/lib/php/os/guess.php:248</code>
The Dockerfile is as follows:
FROM php:7.3-fpm-alpine ENV swoole_version=4.5.3 ENV php_redis=5.3.1 RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories RUN echo "asia/shanghai" > /etc/timezone # update RUN set -ex \ && apk update \ && apk add --no-cache libstdc wget openssl bash \ libmcrypt-dev libzip-dev libpng-dev freetype-dev libjpeg-turbo-dev \ libc-dev zlib-dev librdkafka-dev libmemcached-dev cyrus-sasl-dev RUN apk add --no-cache --virtual .build-deps autoconf automake make g gcc libtool dpkg-dev dpkg unzip \ curl pkgconf file re2c pcre-dev php7-pear php7-dev php7-pear openssl-dev graphviz \ && docker-php-ext-configure gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/ --with-png-dir=/usr/include/ \ # Install common php extensions
Problem analysis and solutions:
The reason for the error is that the PHP version (7.3) used in Dockerfile is incompatible with the version of PECL package manager (php7-pear, php7-dev). php7-pear
and php7-dev
refer to older versions of PHP 7, not 7.3.
The solution is to update the package names related to pear and dev in the Dockerfile to a version compatible with PHP 7.3:
Modified Dockerfile snippet:
RUN apk add --no-cache --virtual .build-deps autoconf automake make g gcc libtool dpkg-dev dpkg unzip \ curl pkgconf file re2c pcre-dev php7.3-pear php7.3-dev php7.3-pear openssl-dev graphviz \ && docker-php-ext-configure gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/ --with-png-dir=/usr/include/ \ # Install common php extensions
The PECL compatibility with PHP 7.3 version was ensured by replacing php7-pear
and php7-dev
with php7.3-pear
and php7.3-dev
, thus resolving the installation error. Remember to rebuild the Docker image after modification. This emphasizes the importance of having to accurately match the PHP version and its associated dependencies when building PHP applications in a Docker environment.
The above is the detailed content of Why does an error occur when installing an extension using PECL in a Docker environment? How to solve it?. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undress AI Tool
Undress images for free

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

Airdrops in the cryptocurrency field are a marketing promotion method for the project to distribute a certain number of tokens for free to community members or potential users. In this way, the project party hopes to increase the visibility of the tokens and attract more users to participate in the project, thereby expanding the size of the community and increasing the liquidity of the tokens. For users, airdrops provide opportunities to obtain project tokens without initial investment, and are one of the ways to get in touch with and understand new projects in the early stage.

Contents 1. What is ICN? 2. ICNT latest updates 3. Comparison and economic model between ICN and other DePIN projects and economic models 4. Conclusion of the next stage of the DePIN track At the end of May, ICN (ImpossibleCloudNetwork) @ICN_Protocol announced that it had received strategic investment in NGPCapital with a valuation of US$470 million. Many people's first reaction was: "Has Xiaomi invested in Web3?" Although this was not Lei Jun's direct move, the one who had bet on Xiaomi, Helium, and WorkFusion

How do novice users choose a safe and reliable stablecoin platform? This article recommends the Top 10 stablecoin platforms in 2025, including Binance, OKX, Bybit, Gate.io, HTX, KuCoin, MEXC, Bitget, CoinEx and ProBit, and compares and analyzes them from dimensions such as security, stablecoin types, liquidity, user experience, fee structure and additional functions. The data comes from CoinGecko, DefiLlama and community evaluation. It is recommended that novices choose platforms that are highly compliant, easy to operate and support Chinese, such as KuCoin and CoinEx, and gradually build confidence through a small number of tests.

Against the backdrop of violent fluctuations in the cryptocurrency market, investors' demand for asset preservation is becoming increasingly prominent. This article aims to answer how to effectively hedge risks in the turbulent currency circle. It will introduce in detail the concept of stablecoin, a core hedge tool, and provide a list of TOP3 stablecoins by analyzing the current highly recognized options in the market. The article will explain how to select and use these stablecoins according to their own needs, so as to better manage risks in an uncertain market environment.

When encountering Docker problems, you should first locate the problem, which is problems such as image construction, container operation or network configuration, and then follow the steps to check. 1. Check the container log (dockerlogs or docker-composelogs) to obtain error information; 2. Check the container status (dockerps) and resource usage (dockerstats) to determine whether there is an exception due to insufficient memory or port problems; 3. Enter the inside of the container (dockerexec) to verify the path, permissions and dependencies; 4. Review whether there are configuration errors in the Dockerfile and compose files, such as environment variable spelling or volume mount path problems, and recommend that cleanbuild avoid cache dryness

Binance is the world's leading cryptocurrency trading platform, providing a variety of trading services such as spot, contracts, options, and value-added services such as financial management, lending and other value-added services. 1. The user base is huge and the market liquidity is high, which is conducive to rapid transactions and reduce the impact of price fluctuations; 2. Provide a wealth of mainstream and emerging currency trading pairs, and covers a variety of financial derivatives; 3. It has a high-performance trading engine and multiple security protection measures to ensure transaction stability and asset security; 4. It has built a diversified blockchain ecosystem including public chains, project incubation, financial products, industry research and education; 5. It operates globally and actively arranges compliance, supports multi-fiat currency and multi-language services, and adapts to regulatory requirements in different regions.

VSCode C development must include: 1.C/C (official recommendation) provides intelligent perception, automatic completion, function jump, variable definition search, support multiple compiler configurations and can quickly build a single file through commands. You need to configure c_cpp_properties.json to set include path and macro definition; 2. CodeRunner can quickly run applets, and default compile and execution and support custom parameters, suitable for simple testing but not for complex projects; 3. BetterC Syntax improves syntax highlighting effect, especially optimizes the display of STL and template code, and enhances support for C 11/14/17; 4. GitLens tracking code author and modification record

There are mainly the following methods to obtain stack traces in C: 1. Use backtrace and backtrace_symbols functions on Linux platform. By including obtaining the call stack and printing symbol information, the -rdynamic parameter needs to be added when compiling; 2. Use CaptureStackBackTrace function on Windows platform, and you need to link DbgHelp.lib and rely on PDB file to parse the function name; 3. Use third-party libraries such as GoogleBreakpad or Boost.Stacktrace to cross-platform and simplify stack capture operations; 4. In exception handling, combine the above methods to automatically output stack information in catch blocks
