Php  POSTGRES  "  IN SIDE "  "

this code is not work in postgres  when I use macro
sc_exec_sql("  sql    ")    I think problem come from "   inside " "

sc_exec_sql("  SELECT 
  pong8."Last", 
  pong8."Timestamp", 
  pong8."Trade Volume", 
  pong8."Bid Size", 
  pong8."Ask Size", 
  pong8."Best Ask"
FROM 
  public.pong8;
    ");

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but this below i test it work   (HOW CAN i FIX " iNSIDE "  " )

SELECT 
  pong8."Last", 
  pong8."Timestamp", 
  pong8."Trade Volume", 
  pong8."Bid Size", 
  pong8."Ask Size", 
  pong8."Best Ask"
FROM 
  public.pong8;

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