Update PHP scripts to use env vars for OAuth token
Update PHP scripts to use env vars for OAuth token

Updates the PHP scripts to use the same environment vars as the python
scripts for loading the OAuth token.

wxsBSD/ThreatExchange,RyPeck/ThreatExchange,tiegz/ThreatExchange,theCatWisel/ThreatExchange,tiegz/ThreatExchange,RyPeck/ThreatExchange,mgoffin/ThreatExchange,arirubinstein/ThreatExchange,tiegz/ThreatExchange,theCatWisel/ThreatExchange,wxsBSD/ThreatExchange,mgoffin/ThreatExchange,theCatWisel/ThreatExchange,wxsBSD/ThreatExchange,wxsBSD/ThreatExchange,theCatWisel/ThreatExchange,tiegz/ThreatExchange,tiegz/ThreatExchange,RyPeck/ThreatExchange,mgoffin/ThreatExchange,mgoffin/ThreatExchange,wxsBSD/ThreatExchange,RyPeck/ThreatExchange,theCatWisel/ThreatExchange,tiegz/ThreatExchange,mgoffin/ThreatExchange,theCatWisel/ThreatExchange,wxsBSD/ThreatExchange,RyPeck/ThreatExchange,RyPeck/ThreatExchange,mgoffin/ThreatExchange