回答編集履歴
2
無名関数追加
answer
CHANGED
|
@@ -74,4 +74,39 @@
|
|
|
74
74
|
}
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|
75
75
|
|
|
76
76
|
$x = new Some();
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|
77
|
+
```
|
|
78
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+
|
|
79
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+
無名関数にすれば煩わしくないか、と思ったりした。
|
|
80
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+
（ソースはアレになりますが）
|
|
81
|
+
|
|
82
|
+
- 無名関数版
|
|
83
|
+
|
|
84
|
+
```
|
|
85
|
+
<?php
|
|
86
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+
|
|
87
|
+
$data = [
|
|
88
|
+
'a1' => [
|
|
89
|
+
'name' => 'zulu',
|
|
90
|
+
'age' => 24,
|
|
91
|
+
'hobby' => 'train',
|
|
92
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+
],
|
|
93
|
+
'a2' => [
|
|
94
|
+
'name' => 'amemiya',
|
|
95
|
+
'age' => 28,
|
|
96
|
+
'hobby' => 'gourmet',
|
|
97
|
+
],
|
|
98
|
+
'a3' => [
|
|
99
|
+
'name' => 'sato',
|
|
100
|
+
'age' => 26,
|
|
101
|
+
'hobby' => 'radio',
|
|
102
|
+
],
|
|
103
|
+
];
|
|
104
|
+
usort($data, function($a, $b) {
|
|
105
|
+
if ($a['name'] === $b['name']) {
|
|
106
|
+
return $a['hobby'] > $b['hobby'];
|
|
107
|
+
} else {
|
|
108
|
+
return $a['name'] > $b['name'];
|
|
109
|
+
}
|
|
110
|
+
});
|
|
111
|
+
var_dump($data);
|
|
77
112
|
```
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1
クラス対応版を追加
answer
CHANGED
|
@@ -31,4 +31,47 @@
|
|
|
31
31
|
return $a['name'] > $b['name'];
|
|
32
32
|
}
|
|
33
33
|
}
|
|
34
|
+
```
|
|
35
|
+
|
|
36
|
+
- クラス対応版
|
|
37
|
+
|
|
38
|
+
```
|
|
39
|
+
<?php
|
|
40
|
+
class Some {
|
|
41
|
+
function __construct() {
|
|
42
|
+
$this->solve();
|
|
43
|
+
}
|
|
44
|
+
|
|
45
|
+
function solve() {
|
|
46
|
+
$data = [
|
|
47
|
+
'a1' => [
|
|
48
|
+
'name' => 'sato',
|
|
49
|
+
'age' => 24,
|
|
50
|
+
'hobby' => 'train',
|
|
51
|
+
],
|
|
52
|
+
'a2' => [
|
|
53
|
+
'name' => 'amemiya',
|
|
54
|
+
'age' => 28,
|
|
55
|
+
'hobby' => 'gourmet',
|
|
56
|
+
],
|
|
57
|
+
'a3' => [
|
|
58
|
+
'name' => 'sato',
|
|
59
|
+
'age' => 26,
|
|
60
|
+
'hobby' => 'radio',
|
|
61
|
+
],
|
|
62
|
+
];
|
|
63
|
+
usort($data, 'self::cond');
|
|
64
|
+
var_dump($data);
|
|
65
|
+
}
|
|
66
|
+
|
|
67
|
+
static function cond($a, $b) {
|
|
68
|
+
if ($a['name'] === $b['name']) {
|
|
69
|
+
return $a['hobby'] > $b['hobby'];
|
|
70
|
+
} else {
|
|
71
|
+
return $a['name'] > $b['name'];
|
|
72
|
+
}
|
|
73
|
+
}
|
|
74
|
+
}
|
|
75
|
+
|
|
76
|
+
$x = new Some();
|
|
34
77
|
```
|