Repository navigation
Expand file tree
/
Copy pathArrayTrait.php
More file actions
120 lines (109 loc) · 3.2 KB
/
Copy pathArrayTrait.php
File metadata and controls
120 lines (109 loc) · 3.2 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
<?php
/**
* Copyright 2016 Google Inc. All Rights Reserved.
*
* 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
*
* 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.
*/
namespace Google\Cloud\Core;
/**
* Provides basic array helper methods.
*/
trait ArrayTrait
{
/**
* Pluck a value out of an array.
*
* @param string $key
* @param array $arr
* @param bool $isRequired
* @return mixed
* @throws \InvalidArgumentException
*/
private function pluck($key, array &$arr, $isRequired = true)
{
if (!array_key_exists($key, $arr)) {
if ($isRequired) {
throw new \InvalidArgumentException(
"Key $key does not exist in the provided array."
);
}
return null;
}
$value = $arr[$key];
unset($arr[$key]);
return $value;
}
/**
* Pluck a subset of an array.
*
* @param string[] $keys
* @param array $arr
* @return array
*/
private function pluckArray(array $keys, &$arr)
{
$values = [];
foreach ($keys as $key) {
if (array_key_exists($key, $arr)) {
$values[$key] = $this->pluck($key, $arr, false);
}
}
return $values;
}
/**
* Determine whether given array is associative.
*
* @param array $arr
* @return bool
*/
private function isAssoc(array $arr)
{
return array_keys($arr) !== range(0, count($arr) - 1);
}
/**
* Just like array_filter(), but preserves falsey values except null.
*
* @param array $arr
* @return array
*/
private function arrayFilterRemoveNull(array $arr)
{
return array_filter($arr, function ($element) {
return !is_null($element);
});
}
/**
* A method, similar to PHP's `array_merge_recursive`, with two differences.
*
* 1. Keys in $array2 take precedence over keys in $array1.
* 2. Non-array keys found in both inputs are not transformed into an array
* and appended. Rather, the value in $array2 is used.
*
* @param array $array1
* @param array $array2
* @return array
*/
private function arrayMergeRecursive(array $array1, array $array2)
{
foreach ($array2 as $key => $value) {
if (array_key_exists($key, $array1) && is_array($array1[$key]) && is_array($value)) {
$array1[$key] = ($this->isAssoc($array1[$key]) && $this->isAssoc($value))
? $this->arrayMergeRecursive($array1[$key], $value)
: array_merge($array1[$key], $value);
} else {
$array1[$key] = $value;
}
}
return $array1;
}
}