Compare multidimensional arrays in PHP

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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

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