http://10.1.1.23/APP/sdk-php-master/examples/checkout-buttons/basic-preference/button.php
http://10.1.1.23/APP/sdk-php-master/formulario/formulario_maraton.html
http://10.1.1.23/APP/sdk-php-master/formulario/for.html
usuario 1 vendedor: 

{"id":253378916,"nickname":"TT593168",
"password":"qatest1373",
"site_status":"active",
"email":"test_user_40715425@testuser.com"}

checkout personalizado 

CLIENT_ID: 5430524821206085
CLIENT_SECRET: 5exYJN9eqlLlFP7VEjYrWhq3B2Ges7HL
----------------------------------------------------

usuario 2:---------------------------------- 

{"id":253380876,"nickname":"TETE600665",
"password":"qatest903",
"site_status":"active",
"email":"test_user_26458999@testuser.com"}

usuari 3:------------------------------------

{"id":253380182,"nickname":"TETE3328685"
,"password":"qatest8521",
"site_status":"active",
"email":"test_user_6984939@testuser.com"}

usuario 4:------------------------------------

{"id":253382497,"nickname":"TETE2925615",
"password":"qatest7365",
"site_status":"active",
"email":"test_user_18920635@testuser.com"}

usuario 5:------------------------------------
{"id":253380264,"nickname":"TETE2374281",
"password":"qatest1540",
"site_status":"active",
"email":"test_user_25909761@testuser.com"}