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POgetting data from functions when posting with jquery
 

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  1. POgetting data from functions when posting with jquery
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    <p>I'm beginning to hate AJax, I'm finding it really difficult to get any kind of useful information back when posting with jQuery.</p> <p>I have a script that adds or removes some info when a button is clicked. The jquery posts to a file which calls a function in a class. This part works, but I cant get a success message back to manipulate the front end. Here is my code.</p> <p>The php works but I keep getting the error JSON.parse: unexpected character which I have googled, but my json looks ok?</p> <p>jQuery</p> <pre><code>$('.fave').click(function(){ var favId = $(this).attr('data-user-fave'); var params = {}; params['fave_id'] = favId; params['fav_flag'] = '1'; $.post('index.php?link=my_applications', params, function(data){ var data = $.parseJSON(data); if(data.message === 'success'){ alert(data.flag); } else{ alert("Fail"); } }); </code></pre> <p>code in file that jQuery posts to </p> <pre><code>$profile = new profile(); if($_POST['fav_flag'] == '1'){ $js = $profile-&gt;fave_user(); echo json_encode($js); } </code></pre> <p>function in class profile</p> <pre><code>function fave_user(){ $query = "SELECT * FROM `favourite` WHERE user_id = '{$_SESSION['loginArr']['user_id']}' AND fave_id = '{$_POST['fave_Id']}'"; $nr = $GLOBALS['DB']-&gt;num_rows($query); if($nr &gt;= 1){ //exists so remove $query = "DELETE FROM `favourites` WHERE user_id = '{$_SESSION['loginArr']['user_id']}' AND fave_id='{$_POST['fave_Id']}'"; $GLOBALS['DB']-&gt;deleteQuery($query); $return["message"]="success"; $return["flag"]="del"; return $return; } else{ //not a fave so add $query = "INSERT INTO `favourite` (user_id, fave_id) VALUES ('{$_SESSION['loginArr']['user_id']}', '{$_POST['fave_id']}')"; $GLOBALS['DB']-&gt;insertQuery($query); $return["message"]="success"; $return["flag"]="ins"; return $return; } } </code></pre>
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