php - jquery ajax call returning more than a single word -


i'm using following code use return php

if (isset($_post['p_id'])) {     if (!isset($_session['carted_products'])) {         $_session['carted_products'] = array();     }//end if not set products array in session      if (!in_array($_post['p_id'], $_session['carted_products'])) {         array_push($_session['carted_products'], $_post['p_id']);         echo "success";     }//end if not in array     else {         echo "already_added";     } }//end if not set post value else {     echo "fail"; }//end else

now in jquery part of calling page. use

$.post(     "add_to_cart.php",     {p_id:"<?php echo $row['p_id'] ?>"},     function(responsetext){         //if(responsetext === "success"){         //things on success     }

but if won't return true.

now when check index of "already_added" in responsetext returns 6..

why happening.

there white spaces in response, try trimming it.

if($.trim(responsetext) === "success"){

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