Compare multidimensional arrays in PHP

Question

How can I compare multidimensional arrays in php? Is there a simple way?

Answer 1

The simplest way I know:

$a == $b;

Note that you can also use the ===. The difference between them is:

1. With Double equals ==, order is important:

   $a = array(0 => 'a', 1 => 'b');
   $b = array(1 => 'b', 0 => 'a');
   var_dump($a == $b);  // true
   var_dump($a === $b); // false
   

2. With Triple equals ===, types matter:

   $a = array(0, 1);
   $b = array('0', '1');
   var_dump($a == $b);  // true
   var_dump($a === $b); // false
   

Reference: Array operators