Why Can\'t I Install PHP\'s Intl Extension on My XAMPP for Mac?

Installing PHP's Intl Extension on XAMPP

Problem:

Users may encounter difficulties installing the intl extension on XAMPP for Mac, despite following instructions. The php -m command fails to detect the installed extension, leading to composer and CakePHP errors.

Solution:

The solution involves using the following steps:

1. Check PHP Path: Determine the currently set PHP path using the "which php" command.
2. Adjust PATH: If the path is not "/Applications/XAMPP/xamppfiles/bin/php," modify the system path to include it: "PATH="/Applications/XAMPP/xamppfiles/bin:${PATH}""
3. Install icu4c: Use Homebrew to install icu4c via "brew install icu4c."
4. Install Intl via PECL: Execute the commands "sudo pecl update-channels" and "sudo pecl install intl" to install the Intl extension.
5. Verify Installation: Check if the extension was installed successfully with "php -m | grep intl."
6. Configure php.ini: Add or uncomment the "extension=intl.so" line in the php.ini file located at "/Applications/XAMPP/xamppfiles/etc/php.ini" and restart Apache.

Additional Notes:

• If "intl" installation fails, ensure Autoconf is installed. Use Homebrew for "brew install autoconf automake" or install manually.
• After installing "intl," clear APC cache (if using): "apcu_clear_cache();."
• If the intl extension remains undetected, try adding the following lines to the php.ini file before the Apache restart:

extension_dir = "/usr/local/lib/php/extensions/no-debug-non-zts-20151012/"
extension=intl.so

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