Why Does Installing Node with Brew Cause a 'Library not loaded: /usr/local/opt/icu4c/lib/libicui18n.62.dylib' Error for PHP?

Troubleshooting dyld Error: "Library not loaded: /usr/local/opt/icu4c/lib/libicui18n.62.dylib" for PHP After Installing Node with Brew

Problem:

Upon installing Node using Homebrew on macOS Mojave, PHP encounters an error upon execution with "php -v":

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 and icu4c does not resolve the issue.

Solution:

To address this error, try the following steps:

1. Upgrade Homebrew: Run the command brew update to update Homebrew itself.
2. Upgrade Individual Packages or All Brew Packages: Execute brew upgrade icu4c to upgrade the icu4c package specifically. Alternatively, upgrade all packages using the command brew upgrade.
3. Cleanup Homebrew: Run brew cleanup to remove any outdated or unused packages.

Additional Considerations:

• If upgrading individual packages does not resolve the issue, try upgrading all brew packages using the command brew upgrade.
• Be cautious when using brew upgrade // as it upgrades all brew packages, potentially including PHP.
• If the error persists, consider reinstalling Node using the Homebrew package manager.

Follow these steps to resolve the issue and ensure PHP functions properly even after installing Node with Homebrew.

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