<?php

/**
 * Copyright 2016 Barion Payment Inc. All Rights Reserved.
 * <p/>
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * <p/>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p/>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * @param $json
 * @param $propertyName
 * @return null
 */

/*
*  Helper functions
*/

/**
 * Gets the value of the specified property from the json
 *
 * @param string $json The json
 * @param string $propertyName
 * @return null The value of the property
 */
function jget($json, $propertyName)
{
    return isset($json[$propertyName]) ? $json[$propertyName] : null;
}

function endsWith($haystack, $needle)
{
    return $needle === "" || (($temp = strlen($haystack) - strlen($needle)) >= 0 && strpos($haystack, $needle, $temp) !== FALSE);
}