Solve the problem of SSL error when running PHP composer when installing yii2 under WIN8

Today try to run composer under the Win8, but there is an SSL error:

D:\data\www\mmoyu\symapp>php-f%phprc%\composer Install

Loading Composer repositories with the package information

[Composer\downloader\transportexception]

The "Https://packagist.org/packages.json" file could not being Downloaded:ssl

Operation failed with code 1. OpenSSL Error messages:

Error:14090086:ssl routines:SSL3_GET_SERVER_CERTIFICATE:certificate Verify

Failed

Failed to enable Crypto

Failed to open Stream:operation failed

Install [--prefer-source] [--prefer-dist] [--dry-run] [--dev] [--no-dev] [--no-p

Lugins] [--no-custom-installers] [--no-scripts] [--no-progress] [-v|vv|vvv|--ver

Bose] [-o|--optimize-autoloader]

No CA certificate installed caused!!!

CA Certificate: http://curl.haxx.se/docs/caextract.html

Then modify the php.ini file

Openssl.cafile=c:/lamp/php56/verify/cacert.pem

Restart Apache

Solve the problem of SSL error when running PHP composer when installing yii2 under WIN8