How to solve PHP error 'Notice: Array to string conversion in…'

Question

I have a PHP file that tries to echo a $_POST and I get an error, here is the code:

echo \"\";
echo \"\";
for($i=0; $i&l         


        

Answer 1

When you have many HTML inputs named C[] what you get in the POST array on the other end is an array of these values in $_POST['C']. So when you echo that, you are trying to print an array, so all it does is print Array and a notice.

To print properly an array, you either loop through it and echo each element, or you can use print_r.

Alternatively, if you don't know if it's an array or a string or whatever, you can use var_dump($var) which will tell you what type it is and what it's content is. Use that for debugging purposes only.