Getting error message undefined index in php

Question

So I get this error on my page:

Notice: Undefined index: url in /mnt/studentenhomes/brent.heynsmans/public_html/RMD/Taak-Rich-Media/index.php on line 14

i know that this code gives me that error

<?php
$playlist = $_GET['url'];
?>
<script>
var my_fn = function(callback) {   // <-- this is callback to be called later
var jax = [];
$.ajax({
    url: "<?php echo $playlist ?>",
    dataType: "xml",
    success: function (data) {
        var song = $(data).find('key').filter(function () {
            return $(this).text().indexOf('Name') != -1;
        }).each(function() {
            var content = $(this).next('string').text();
            jax.push(content);
        });
        callback(jax);   
    }
});

};

how do i fix this?

Difficult to find the bug... You need to share some more of your code.... — Vagabond, May 11 '14 at 14:11

score 2 · Answer 1 · answered May 11 '14 at 14:10

2

You can fixed this by:

<?php
$playlist = isset($_GET['url']) ? $_GET['url'] : 'default value';
?>

answered May 11 '14 at 14:10

Brotheryura

1,158
13
21

Or if there isn't a default value, then simply do @$_GET['url'], and then add your own error handling/display – Digital_Utopia May 11 '14 at 14:12
1

@Digital_Utopia, Nope don't use `@` the error suppression operator. – Shankar Narayana Damodaran May 11 '14 at 14:13
1

@Shankar Damodaran +1 – Brotheryura May 11 '14 at 14:14
@ShankarDamodaran any particular reason why? – Digital_Utopia May 11 '14 at 14:18
1

@Digital_Utopia, Here's a beautiful [**article**](http://www.sitepoint.com/why-suppressing-notices-is-wrong/) on that. – Shankar Narayana Damodaran May 11 '14 at 14:19
@Brotheyura it doesn't show an error on my page but in my console i get an error 404 – Brent May 11 '14 at 14:20
open your html code and look at ajax `url:...` what data is in a variable ? – Brotheryura May 11 '14 at 14:54

Getting error message undefined index in php

1 Answers1