added PHP API example
added PHP API example

patricklodder/dogepartyd,monaparty/counterparty-lib,CounterpartyXCP/counterparty-lib,metronotes-beta/metronotesd,CounterpartyXCP/counterparty-lib,Czarparty/czarpartyd,F483/counterparty-lib,Peertokens/peertokensd,Dogeparty/dogepartyd,monaparty/counterparty-lib,Tetchain/tetchaind,tokenly/counterparty-lib,Reddcraft/reddcraftd,stefcrypto/counterparty-lib,F483/counterparty-lib,Litetokens/litetokensd,Ziftr/counterpartyd,Tetchain/tetchaind,coinwarp/dogeparty-lib,Ziftr/counterpartyd,ClearingHouse/clearinghoused,jarymoth/counterpartyd,Metronote/metronotesd-alpha,Reddcraft/reddcraftd,Bluejudy/bluejudyd,gotcha/testcounter,ClearingHouse/clearinghoused,Bluejudy/bluejudyd,paytokens-beta/paytokensd,Paytokens/paytokensd,Dogeparty/dogepartyd