public function testExists()
{
$this->assertTrue(Arr::exists([1], 0));
$this->assertTrue(Arr::exists([null], 0));
$this->assertTrue(Arr::exists(['a' => 1], 'a'));
$this->assertTrue(Arr::exists(['a' => null], 'a'));
$this->assertFalse(Arr::exists([1], 1));
$this->assertFalse(Arr::exists([null], 1));
$this->assertFalse(Arr::exists(['a' => 1], 0));
}
/**
* Get an item from an array or object using "dot" notation.
*
* @param mixed $target
* @param string|array $key
* @param mixed $default
* @return mixed
*/
function data_get($target, $key, $default = null)
{
if (is_null($key)) {
return $target;
}
$key = is_array($key) ? $key : explode('.', $key);
while (($segment = array_shift($key)) !== null) {
if ($segment === '*') {
if ($target instanceof Collection) {
$target = $target->all();
} elseif (!is_array($target)) {
return value($default);
}
$result = Arr::pluck($target, $key);
return in_array('*', $key) ? Arr::collapse($result) : $result;
}
if (Arr::accessible($target) && Arr::exists($target, $segment)) {
$target = $target[$segment];
} elseif (is_object($target) && isset($target->{$segment})) {
$target = $target->{$segment};
} else {
return value($default);
}
}
return $target;
}