miki131

$result = [];
foreach (array_values($array) as $block) {
    $result[] = array_rand($block);
}

$string = 'This random text. The first variable is equal to %s, the second variable is equal %s.';
$formatted = sprintf($string, 'яблоко', 'груша');

<?php
$datetime1 = new DateTime('2009-10-11');
$datetime2 = new DateTime('2009-10-13');
$interval = $datetime1->diff($datetime2);
echo $interval->format('%R%a дней');
?>

[
{
  "code": "123456-ABC",
  "created_at": "22-06-2014",
  "valid": true
}
]