jquery - PHP & JSON - Trouble to print a value on client side -

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i have php function :

if(($_post['id']=="pm_read") && (isset($_post['pm_id'])) && (ctype_digit($_post['pm_id'])) && (isset($_session['nickname']))) {     $update=mysql_query("update pm set readed='1' id='".$_post['pm_id']."' , receiver='".$_session['nickname']."'",$mydb);     $query=mysql_query("select count(id) pm receiver='".$_session['nickname']."' , readed='0' , receiver_delete='0' order date desc",$mydb);     $arraypm[0]=mysql_result($query,0,'count(id)');     $query=mysql_query("select message pm id='".$_post['pm_id']."' , receiver='".$_session['nickname']."'",$mydb);          $arraypm[1]=mysql_result($query,0,'message');     echo json_encode($arraypm);      }

on client side, array trought jquery function :

$.ajax({     type: 'post',     cache: false,     url: 'pm/pm_ajax.php',     data: 'pm_id='+$(this).attr('id')+'&id=pm_read',     success: function(data) {        ... here i'll print somethings...     } });

unfortunatly, if print data (for example) string ["2", "message"]. so, if try alert(data[0]) i'll see [.

how can access array printing correct result? mean :

data[0] must print 2 , data[1] must print message...

try adding 

datatype:'json'

to options in ajax call.


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