How do I get the content from shared HTML file?

Hi!

I am working with shared links files on my Dropbox App in PHP and I need a hand.

Currently, I send a request file to the API and get back a HTML file:

array(1) {
  [0]=>
  array(10) {
    [".tag"]=>
    string(4) "file"
    ["name"]=>
    string(28) "FiatoRetB_C_V02DesignB1.html"
    ["path_lower"]=>
    string(51) "/fiatoretb_c_v02design/fiatoretb_c_v02designb1.html"
    ["path_display"]=>
    string(51) "/FiatoRetB_C_V02Design/FiatoRetB_C_V02DesignB1.html"
    ["id"]=>
    string(25) "id:WEoRMx*****AAAAAAAAAXQ"
    ["client_modified"]=>
    string(20) "2019-03-12T08:46:42Z"
    ["server_modified"]=>
    string(20) "2019-03-12T08:46:43Z"
    ["rev"]=>
    string(10) "4755e2a02d"
    ["size"]=>
    int(26257)
    ["content_hash"]=>
    string(64) "203d964e139d8b15fdfe*****4835431e07f79fd7ac31ffb443717d5bcd6c3d7"
  }
}

What I need to do now, is actually to get the file content from this HTML file (the HTML code). I have tried different ways such as get_headers and others functions but without successs. 

The question is, how does Dropbox API can provide the file content itself? Or is there any other way to get that content?

Thank you in advance!!