Why Is Composer Warning About Missing OpenSSL Extension on WAMP?

Composer Warning: openssl extension missing in WAMP

Installing Composer on Windows 7/64 with WampServer 2.2 may prompt the error "The openssl extension is missing..." Despite enabling the extension through the Wamp UI, Composer still detects its absence.

Solution:

This issue arises because PHP.ini files exist separately for Apache and the Command Line Interface (CLI) within WAMP. While enabling php_openssl through the Wamp UI activates the extension for Apache, it leaves it dormant for the CLI.

To enable openssl for the CLI, edit the following file:

C:\wamp\bin\php\php-5.4.3\php.ini

Steps:

1. Enable php_openssl.

extension=php_openssl.dll ; enabled by Wamp

2. Save the file and restart WAMP.
3. Verify the extension's status by running php -m in the command prompt. openssl should be listed.
4. Re-execute Composer-Setup.exe. The warning should now be resolved.

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