vendor/Zend/Stdlib/Guard/ArrayOrTraversableGuardTrait.php

   1 <?php
   2 /**
   3  * Zend Framework (http://framework.zend.com/)
   4  *
   5  * @link      http://github.com/zendframework/zf2 for the canonical source repository
   6  * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
   7  * @license   http://framework.zend.com/license/new-bsd New BSD License
   8  */
   9
  10 namespace Zend\Stdlib\Guard;
  11
  12 use Traversable;
  13
  14 /**
  15  * Provide a guard method for array or Traversable data
  16  */
  17 trait ArrayOrTraversableGuardTrait
  18 {
  19     /**
  20      * Verifies that the data is an array or Traversable
  21      *
  22      * @param  mixed  $data           the data to verify
  23      * @param  string $dataName       the data name
  24      * @param  string $exceptionClass FQCN for the exception
  25      * @throws \Exception
  26      */
  27     protected function guardForArrayOrTraversable(
  28         $data,
  29         $dataName = 'Argument',
  30         $exceptionClass = 'Zend\Stdlib\Exception\InvalidArgumentException'
  31     ) {
  32         if (!is_array($data) && !($data instanceof Traversable)) {
  33             $message = sprintf(
  34                 "%s must be an array or Traversable, [%s] given",
  35                 $dataName,
  36                 is_object($data) ? get_class($data) : gettype($data)
  37             );
  38             throw new $exceptionClass($message);
  39         }
  40     }
  41 }