本篇文章带大家介绍php动态库libicui18n报错问题。有一定的参考价值，有需要的朋友可以参考一下，希望对大家有所帮助。
php动态库libicui18n报错
安装完成ffmpeg出现动态库libicui18n报错，不存在
$ php -v dyld: Library not loaded: /usr/local/opt/icu4c/lib/libicui18n.63.dylib Referenced from: /usr/local/opt/php@7.2/bin/php Reason: image not found [1] 31174 abort php -v
通过网上查找资料了解到php新版本的动态库7.2.16不能使用63版本，通过升级php可以解决问题。 【推荐学习：PHP视频教程】
使用brew升级php
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$ brew upgrade php72 ==> Upgrading 1 outdated package: php@7.2 7.2.16 -> 7.2.20 ==> Upgrading php@7.2 ==> Installing dependencies for php@7.2: apr, argon2, libssh2, jemalloc, libev, nghttp2, curl-openssl, freetds, libpq and libsodium ==> Installing php@7.2 dependency: apr ==> Downloading https://homebrew.bintray.com/bottles/apr-1.7.0.mojave.bottle.tar.gz ==> Downloading from https://akamai.bintray.com/3a/3a245185ed7280d1a19e7c639786b4c21dd0088878be8ac87ca58510eb5c9cc1?__gda__=exp=1563530722~hmac=8e94698ea6aa458b7dfea49d1cde602217ab9a2 ######################################################################## 100.0% ==> Pouring apr-1.7.0.mojave.bottle.tar.gz ==> Caveats apr is keg-only, which means it was not symlinked into /usr/local, because Apple's CLT package contains apr. If you need to have apr first in your PATH run: echo 'export PATH="/usr/local/opt/apr/bin:$PATH"' >> ~/.zshrc
一切结束之后执行php查看版本：
$ php -v PHP 7.2.20 (cli) (built: Jul 5 2019 12:51:26) ( NTS ) Copyright (c) 1997-2018 The PHP Group Zend Engine v3.2.0, Copyright (c) 1998-2018 Zend Technologies with Zend OPcache v7.2.20, Copyright (c) 1999-2018, by Zend Technologies
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