/**
* @param string|array $field
* @param mixed $value
* @param callable|null $callback
*
* @return mixed
*/
public function validate($field, $value, callable $callback = null)
{
$key = $field;
if (is_array($field)) {
$key = key($field);
$field = current($field);
}
if ($callback !== null) {
$value = $callback($value);
}
while (!empty($this->stack)) {
$item = array_shift($this->stack);
if (false === ($validator = $this->collection->get($item['name']))) {
throw new \RuntimeException('Unknown validator `' . $item['name'] . '`');
}
$arguments = $validator->getFormattedArgs($item['arguments']);
if ($validator->validate($value, $arguments)) {
continue;
}
if (!isset($arguments['field'])) {
$arguments['field'] = $field;
}
if (!isset($arguments['value'])) {
$arguments['value'] = is_array($value) ? var_export($value, true) : $value;
}
$this->stack = array();
$error = isset($item['error']) ? $item['error'] : $validator->getError();
$this->errors[$key] = $this->placeholder->replace($error, $arguments);
break;
}
return $value;
}
