警告：implode（）[function.implode]：在表单复选框中传递的参数无效

Question

Been struggling with this some time now and is probably something simple...

I keep getting the following error whilst trying to submit a contact form

Warning: implode() [function.implode]: Invalid arguments passed in .... on line 240.

HTML CODE

<input type="checkbox" name="socialmedia[]" value="Facebook">Facebook<br>
<input type="checkbox" name="socialmedia[]" value="Twitter">Twitter<br>
<input type="checkbox" name="socialmedia[]" value="YouTube">YouTube<br>
<input type="checkbox" name="socialmedia[]" value="Flickr">Flickr<br>
<input type="checkbox" name="socialmedia[]" value="Vimeo">Vimeo<br>

PHP CODE

$socialmedia = array();
$socialmedia = implode(",",$_POST['socialmedia']);

Any Ideas anyone?

Answer 1

Here you go:

<form method="post">
<input type="checkbox" name="socialmedia[]" value="Facebook">Facebook<br>
<input type="checkbox" name="socialmedia[]" value="Twitter">Twitter<br>
<input type="checkbox" name="socialmedia[]" value="YouTube">YouTube<br>
<input type="checkbox" name="socialmedia[]" value="Flickr">Flickr<br>
<input type="checkbox" name="socialmedia[]" value="Vimeo">Vimeo<br>
<input type="submit">
</form>
<?
$socialmedia = array();
if(isset($_POST['socialmedia'])) $socialmedia = implode(",",$_POST['socialmedia']);
print_r($socialmedia);
?>

only change is additional checking if(isset($_POST['socialmedia'])) before imploding the array