Some settings on your machine make Composer unable to work properly. Make sure that you fix the issues listed below and run this script again: The openssl extension is missing, which means that secure HTTPS transfers are impossible. If possible you should enable it or recompile php with –with-openssl
Cara memperbaikinya sangat mudah hanya mengubah 2 file pada php dan pada apache.
1.Buka file php.ini kemudian hapus titik koma (;) pada ;extension=php_openssl.dll maka akan menjadi extension=php_openssl.dll
C:\wamp\bin\apache\Apache2.4.4\bin\php.ini
C:\wamp\bin\php\php5.4.12\php.ini
