Why Does PHP Fail to Load After Installing Node via Homebrew: 'dyld: Library not loaded: /usr/local/opt/icu4c/lib/libicui18n.62.dylib'?

PHP Fails to Load After Installing Node via Homebrew: "dyld: Library not loaded: /usr/local/opt/icu4c/lib/libicui18n.62.dylib"

Problem:

After installing Node.js using Homebrew on macOS Mojave, PHP encounters an error when attempting to load a library:

dyld: Library not loaded: /usr/local/opt/icu4c/lib/libicui18n.62.dylib
Referenced from: /usr/local/bin/php
Reason: image not found

Uninstalling both Node.js and icu4c does not resolve the issue.

Solution:

To address this error, the following steps have been recommended:

Homebrew Version Mismatch:

• Run brew cleanup to resolve any version mismatches in Homebrew packages.

Package Upgrade:

• Upgrade specific packages, including icu4c, using brew upgrade icu4c.
• Alternatively, upgrade all installed packages by running brew upgrade.

Cleanup:

• Once the upgrade is complete, run brew cleanup to remove any outdated or unnecessary files.

Cautions:

• Upgrading all packages may affect other applications or configurations.
• Ensure that you have backed up any critical data before performing these actions.

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