PHP Docs on gh-pages

generate-api.sh

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+# Get ApiGen.phar
+wget http://www.apigen.org/apigen.phar
+
+# Generate Api
+php apigen.phar generate -s lib -d ../gh-pages
+cd ../gh-pages
+
+# Set identity
+git config --global user.email "travis@travis-ci.org"
+git config --global user.name "Travis"
+
+# Add branch
+git init
+git remote add origin https://${GH_TOKEN}@github.com/paypal/PayPal-PHP-SDK.git > /dev/null
+git checkout -B gh-pages
+
+# Push generated files
+git add .
+git commit -m "API updated"
+git push origin gh-pages -fq > /dev/null