CODEWITHSUNDEEP
javascriptphpjquerymysqlajax
Hossam
Hossam

Reputation: 177

ajax returns true, but == returns false

I have a form and I send it to php to insert into mysql db by ajax. everything went good, and php return the "true" value, but in ajax it shows false message.

here you can look at the php code:-

if(isset($result)){
    $value =  array('msg' => 'true' );
} else {
    $value =  array('msg' => 'false' );
}
echo json_encode($value);

and this is the ajax code:-

success: function(value){
    if (value.msg == 'true') { 
        alert("Saved");
    }else{
        alert("Something went wrong.");
    }

and from console:

//value = "↵{"msg":"true"}

P.S. I don't know what is the ENTER sign "↵" do in the returned value, but I think it shouldn't affect, right?

Upvotes: 3

Views: 656

Answers (5)

Beaumind
Beaumind

Reputation: 896

first check that there is no extra enter before open php tag or after close php tag then add this line to your request:

dataType:"json"

Upvotes: 0

Death-is-the-real-truth
Death-is-the-real-truth

Reputation: 72299

You need to add:-

dataType:"json",

In your Ajax and it will work.

One more solution is $.parseJSON (if you are not using dataType:"json"):-

success: function(value){
  var json = $.parseJSON(value);
   if (json.msg == 'true') { 
        alert("Saved");
    }else{
        alert("Something went wrong.");
    }
 }

Upvotes: 4

Jalpa
Jalpa

Reputation: 720

You need to convert json string with parse as below.

success: function(value){
var json = $.parseJSON(value);
    if (json.msg == 'true') { 
        alert("Saved");
    }else{
        alert("Something went wrong.");
    }

Please refer this link for more information http://api.jquery.com/jquery.parsejson/

Upvotes: 0

billias
billias

Reputation: 825

Probably the value you get back is a plain string. Try converting to json:

success: function (value) {
    value = JSON.parse(value);
    if(value.msg ==='true') {
         /* your logic here */
    }
}

Upvotes: 0

Niklesh Raut
Niklesh Raut

Reputation: 34914

May be you are getting true as boolean not as string

Try like this 

if (value.msg == true) { 
    alert("Saved");
}else{
    alert("Something went wrong.");
}

Upvotes: 0

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