Unable to overwrite File contents in php from android -


i trying send variable android app php site. able send if use file_append.

my aim overwrite previous data.if remove file_append, doesn't return anything. example if post dog,cat,bird, php site shows dogcatbird. want bird. cat should overidden dog , forth. removing file_append seems not work. how rectify this? . . . . . . . . . .

mainactivity.java file:

    public class mainactivity extends activity {      button sendbutton;      edittext msgtextfield;      /** called when activity first created. */     @override     public void oncreate(bundle savedinstancestate)     {         super.oncreate(savedinstancestate);         // load layout         setcontentview(r.layout.activity_main);         if (android.os.build.version.sdk_int > 9) {             strictmode.threadpolicy policy = new strictmode.threadpolicy.builder().permitall().build();             strictmode.setthreadpolicy(policy);         }          // make message text field object         msgtextfield = (edittext) findviewbyid(r.id.msgtextfield);         // make send button object         sendbutton = (button) findviewbyid(r.id.sendbutton);      }      // function gets called when click button     public void send(view v)     {         // message message text box         string msg = msgtextfield.gettext().tostring();          // make sure fields not empty         if (msg.length()>0)         {             httpclient httpclient = new defaulthttpclient();             httppost httppost = new httppost("https://delectable-passbook.000webhostapp.com/sms/test1.php");             try {                list<namevaluepair> namevaluepairs = new arraylist<namevaluepair>(2);                 namevaluepairs.add(new basicnamevaluepair("message", msg));                 httppost.setentity(new urlencodedformentity(namevaluepairs));                 httpclient.execute(httppost);                 msgtextfield.settext(""); // clear text box             } catch (clientprotocolexception e) {                 // todo auto-generated catch block             } catch (ioexception e) {                 // todo auto-generated catch block             }          }         else         {             // display message if text fields empty             toast.maketext(getbasecontext(),"all field required",toast.length_short).show();         }      }  }

php file code :

<?php           // "message" variable post request            // data coming android app               $message=$_post["message"];             // specify file save contents of variable                message               $filename="androidmessages.html";               // write (append) data file                file_put_contents($filename,$message,file_append);              // load contents of file variable            $androidmessages=file_get_contents($filename);        // display contents of variable (which has contents of             file)         echo $androidmessages; ?>


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