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Editing: ArgumentValidator.php
<?php namespace PayPal\Validation; /** * Class ArgumentValidator * * @package PayPal\Validation */ class ArgumentValidator { /** * Helper method for validating an argument that will be used by this API in any requests. * * @param $argument mixed The object to be validated * @param $argumentName string|null The name of the argument. * This will be placed in the exception message for easy reference * @return bool */ public static function validate($argument, $argumentName = null) { if ($argument === null) { // Error if Object Null throw new \InvalidArgumentException("$argumentName cannot be null"); } elseif (gettype($argument) == 'string' && trim($argument) == '') { // Error if String Empty throw new \InvalidArgumentException("$argumentName string cannot be empty"); } return true; } }
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