php - Ajax POST Requests return int instead of string -

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i have following js code:

var datastring = "action=validateusername"+          "&username="+usernameregi+          "&lang="+lang; $.ajax({ type: "post", url: "function.php", data: datastring, cache: false, success: function(result)     {                    var expl=result.split("|");                  if(expl[0]=="1")             alert("1");                  else if(expl[0]=="99")         alert("99");     } });

this function.php

if($_post["action"]=="validateusername") {     $username=$_post["username"];     $lang=$_post["lang"];      $sqlselect = "select * user username='".$username."'";     $sqlquery = mysql_query($sqlselect);     $rowcount = mysql_num_rows($sqlquery);      if($rowcount>0)     {     if($lang=="bm")         echo "99|my msga.";     else         echo "99|my msgb.";     }     else     {     if($lang=="bm")         echo "1|my msgc.";     else         echo "1|my msgd.";       } }

the problem is, ajax request never alert 1 or 99 on success. , found problem expl[0]==1 instead of expl[0]=="1".

when turn code one, run smooth.:-

if(expl[0]==1) alert("1");  else if(expl[0]==99) alert("99");

this happen when upload code server. no problem on localhost. problem, there setting on server cause problem?

could explain me, happening here?

it's because:

when assign numeric value variable, not put quotes around value. if put quotes around numeric value, treated text.


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