Remove lines with empty values from multidimensional-array in php

Question

How do you remove the lines that have empty elements from a multidimensional-array in PHP?

For instance, from:

1: a, b, c, d
2: d, _, b, a
3: a, b, _, _
         


        

Answer 1

$arr = array(... your multi dimension array here ...);
foreach($arr as $idx => $row) {
    if (preg_grep('/^$/', $row)) {
        unset($arr[$idx]);
    }
}