min_score in php not working

[fabup]

Hi All,

    I'm testing the common terms query. I tested code in Sense, it work. Here is my code in Sense.



    But when I convert code to php language and run it on browser, it stuck when I try to set min_score. If I remove this line it can work. Here is my php code.



    Could you please give me the solution for fix this problem. Thank you very much.