implode(): Invalid arguments passed in error message

Question

I get this error:

implode(): Invalid arguments passed in error message on line 7

And this is my file:

<?php 
  if (isset($_POST['submit'])) {
    $token = $_POST['token'];
    $cat   = $_POST['cat'];
    $ads   = $_POST['ads'];
    $key2  = !empty($_POST['keyboard']) ? $_POST['keyboard'] : ''; 

    $key = implode(", ", $key2);
    $tel = new Telegram();
    $notice[] = $tel->AddNew($token, $cat, $ads, $key);
  }
?>

So how to fix this ?

Note: This question is due to one of the answers to my other question:

How to insert multiple radio button values with PHP OOP

This question is due to one of the answers to my other question: — , Sep 25 '17 at 22:09
https://stackoverflow.com/questions/46404664/how-to-insert-multiple-radio-button-values-with-php-oop — , Sep 25 '17 at 22:09

score 2 · Accepted Answer · answered Sep 25 '17 at 22:10

2

 $key2 = !empty($_POST['keyboard']) ? $_POST['keyboard'] : array();

This solves the error, whatever you're trying to do.

answered Sep 25 '17 at 22:10

yoda

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implode(): Invalid arguments passed in error message

1 Answers1