Assign array values to PHP variable

Question

I have some code which checks to see whether a certain variable is an array. If it is, I would like to assign all the array values to a single, comma-separated PHP variable. Here is the code:

if (is_array($value)) {         
    //Need to assign the array variables to the PHP variable $files, but how?
    $postdata.=$files;          
} else {
    $postdata.=$value;
}  

I have tried to use $files = print_r(array_values($value)); but it does not seem to work for me. What am I doing wrong? Thanks.

Answer 1

尝试：

$string = implode(',', $array);

Answer 2

添加以下行： $files= implode(',', $value);