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<?php
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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.
*/
/**
* @package Avro
*/
/**
* Class for static utility methods used in Avro.
*
* @package Avro
*/
class AvroUtil
{
/**
* Determines whether the given array is an associative array
* (what is termed a map, hash, or dictionary in other languages)
* or a list (an array with monotonically increasing integer indicies
* starting with zero).
*
* @param array $ary array to test
* @returns true if the array is a list and false otherwise.
*
*/
static function is_list($ary)
{
if (is_array($ary))
{
$i = 0;
foreach ($ary as $k => $v)
{
if ($i !== $k)
return false;
$i++;
}
return true;
}
return false;
}
/**
* @param array $ary
* @param string $key
* @returns mixed the value of $ary[$key] if it is set,
* and null otherwise.
*/
static function array_value($ary, $key)
{
return isset($ary[$key]) ? $ary[$key] : null;
}
}
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