PHP implode Invalid arguments passed

0 votes

I am using Codeigniter and its validation rules - a custom callback validation. I think this is not  CI-related. 

I've got this function to return a string :

function array_implode($a)
{
  return implode(',', $a);
}

But it always return a message, implode(): Invalid arguments passed

But var_dump() returns this:

array(2) {
  [0]=> string(10) "First item"
  [1]=> string(11) "Second item"
}

What am I doing wrong here? Can someone please help me with this?

Jun 13, 2022 in PHP by narikkadan
• 53,520 points
760 views

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